After months of development, testing, testing and even more testing the app was ready for deployment to production. Happy days, the end was in sight!

I had a week's leave so I handed over the preparation for deployment to my Senior Developer and left it in his capable hands while I enjoyed the sun and many beers.

I came back on the day of deployment and proudly pressed the deploy button. Hurrah!

Not long after I got loads of phone calls from around the country as the app wasn't working. What madness is this?! We tested this for months!

Turns out my Senior didn't like the way I'd written the SQL queries so he changed them. Which is obviously both annoying and unprofessional, but even worse he got a join wrong so the memory usage was a billion times more and it drained the network bandwidth for the whole site when I tried to debug it.

I got all the grief for the app not working and for causing many other incidents by running queries that killed the network.

So...much... rage!!!