[quote=Teoinsanity]
dont do that,,spiders are only aggressive if you mess with them,and they eat common pests,like mosquitos ,wasps,and flys,and they are awesome
[/quote]

Black widows are infamously venomous. Given that it's in his dog's food dish, I wouldn't want my dog getting killed by shovong his face in there.

Also most spiders are incredibly timid, and many will not bite even if you're trying to coax them into doing it.