I don't know if this is wrong or not but that made me laugh!! Boris and Charlie figured you wouldn't mind a little party since you were so accomodating to them I guess!
You're a better person than me Slick! I kill any insects that dare venture into my home. I guess I'm not a good hostess like yourself! If I'm outside however, I let them live. I mean, after all I'm in THEIR space then right?
Don't feel too badly about the fruitflies. They only live for 24 hours or so anyway, you just made them fruit fly heros! The others are mourning, thinking "Oh, so sad...but, like they say, only the good die young."

I am curious though, where are they coming from? Did someone leave fruit lying around? They can multiple fast and can be difficult to get rid of. I used to bartend and we would occassionally have trouble with them in the spring and late summer.