Good Morning Folks!!!

I haven't been posting in a while, besides the fact that I went thru a crazy psychiatric crisis 6 weeks ago, there have not been much news to share here.

Now, recovering and working again luckily, I have to face again the stupid pointy haired boss.

So, this fucker asked me for an estimation to build a simple web app.
He: Hey, can you make an estimation for this app
Me: sure, here it is.
He: *to the client*, here's the estimation for the web app you requested
Client: Uhmm, can I haz desktop for winbug$??
He: Let me check with dev
Me: Sure why not, we can do F# using MVU which is basically the same as using modern web frameworks
He: Sure, I'll tell that to the client.
Client: Oooohhh, C#, we lovez C#, can I haz discount?
He: Client wants discount to make it in C#.
Me: Oh, you can give him a discount to make it in F#, I never said C#
He: But your cv says you used C# ten years ago.
Me: Sure, but is not keeping up with functional design patterns, which is what I do.
He: Ok, so I'm offering him the discount in F#
Me: Great.
He: So, project is approved, thanks for the discount, you have 3 weeks to present the product in C#.
Me: Sure, I'll start when I get the downpayment.

Me: I'm considering saying that I didn't understand that he wanted it in C#, and just do F# and not let him know until the project is done.

Thoughts??