Age Old Dilemma

There is a spider crawling on the ceiling. Once upon a time, I would carefully remove the critter and gently deposit it outside. That was until I moved to North Eastern Ohio where the darn things bite.

So...

Do I talk Chas into killing it upon his return?
Or do we keep it as a defense against the mosquitos?
Or do I just leave the room and try not ti think about it?