Visited Java and couldn't C on short distances. Went to an iClinic that Swift'ly gave me c++ goggles. I can now C# but I Haskell been struggling with my OCaml as it's been bit by a Bash'ing Python in a Shell. I'm not trying to sell you a Ruby but I can't find my way back to BASIC.

Worst exp. on a collab/group project?

Had a few, here is one.

Worked with a dev team (of two devs) in Norway to begin collaboration on providing a portal into our system (placing orders, retrieving customer info, inventory control, etc)

They spoke very good English, but motivation was the problem. Start the day around 10:00AM...take a two hour lunch...ended the day at, if I was lucky, 4:00PM (relative to Norway time). Response time to questions took days, sometimes weeks. We used Skype, which helped, but everything was "Yea...I'll do that tomorrow...waiting on X....I have a wedding to go to, so I'll finish my part next week."

I didn't care so much, I had other projects to do, but the stakeholders pounded me almost everyday demanding a progress report (why aren't you done yet...etc..etc.)
The badgering got so bad I told the project owner (a VP) if he wanted this project done by the end of the year, the company would have to fly me to Norway so I personally push things along.
When real money was on the line, he decided patience was warranted.

A 3 month project turned into 9, and during a phone meeting with the CEO in December
O: "Thanks guys, this project is going great. We'll talk again in February. Bye."
PM: "Whoa...what! February!"
<sounding puzzled>
O: "Um..yes? It's Christmas time. Don't you Americans take off for Christmas?"
PM: "Yes, but not until Christmas. Its only December 12th. Your taking the whole month of December and January for Christmas?"
O:"Yes, of course. You Americans work too hard. You should come over here and see how we celebrate. Takes about a month so we can ease back into the flow of things."
<Jack is the VP>
PM: "Jack wanted this project completed by the end of the year, that is what everyone agreed to."
O:"Yes, I suppose, but my plane is waiting on me. Not to worry, everything will be fine."
<ceo hangs up>
PM: "Oh shit..oh shit..oh shit. What are you going to do!?"
Me: "Me!?..not a darn thing. Better go talk with Jeff."
<Jeff is the VP>
J: "This is unacceptable. You promised this project would only take a few months. I told you there would be consequences for not meeting the deadline."
PM:"But..but...its not our fault."
J: "I don't care about fault. I care about responsibility. I've never had to fire anyone for not meeting a deadline, but .."
Me: "Jeff, they are in Norway and no one is working this project for the next two months. You've known for months about them dragging their asses on this project. We're ready to go. Services have been tested and deployed. Accounting has all the payment routing ready. Only piece missing is theirs."
J: "Oh. OK. Great job guys. I guess we'll delay this project until February."
<leave the office>
PM: "Holy shit I'm glad you were there. I thought I was fired."
Me: "Yea, and that prick would have done it not giving a crap that it's Christmas."
<fast forward to Feb>
O: "Our service provider fell through, so I'm hosting with another company. You guys know PHP? Perl? I don't know what they called it, but it sounded so cool I bought the company."
PM: "You bought what? Are we still working with Z and B?"
O:"Yea, sort of. How's your German? New guy only speaks German."
PM: "Um, uh... no one here speaks German"
O:"Not to worry, I speak German, French, and Italian. I'll be your translator."
PM: "What? French and Italian?"
O: "On my trip to France I connected with a importer who then got me in touch with international shipper in Italy. I flew over there and met a couple really smart guys than can help us out. My new guy only speaks German, J only speaks French, and R speaks Italian, Russian, and a little English. Not to worry, I'm full time on this project. You have my full attention."

We believe the CEO has/had some serious mental issues, including some ADD. He bailed within the first month (took another vacation to Sweden to do some fishing) and left me using Google Translate to coordinate the project. Luckily, by the end, the Norwegian company hired a contractor from England who spoke German and hobbled together the final integration.