And I have no intention of learning. C and C++ work for me, with a bit of inline assembly here and there, and if I'm in a hurry I'll throw together a little Perl. Guess I'm a stodgy old fart.
I did a bit with Visual BASIC once, many years ago. Decided it wasn't worth my while. Undoubtedly, I've forgotten it all by now, along with PDP-10 assembly, several foreign languages, and the smattering of Koine Greek I had in college. I know I've forgotten Spanish. Hell, I can't even do long division by hand anymore, and I used to do it in my head. Some knowledge just isn't worth retaining.
[On second thought, I think it was Classical Greek. Yes, I've definitely forgotten.]