I regularly spend a weekend with my friends Lua, Python, Perl, HTML, batch, C++ and a guy name Thomas...
Oh, and there are the times where I terminate the fun of smalltalk/movies/gaming/w/e. with "That is SO improbalbe, it conflics in so many ways with [name of scientific theory/ruleset]"
And the my usual "I have been thinking..." Followed be either: how and which superpowers would be awesome, which superhero could beat which, how you might design a superweapon, etc. etc.
Then there was the argument I had with a friend about how to be an evil overlord and not getting my ass kicked by the hero.