I hate cockroaches

I had thought that my tactic of spraying the lower side of my door from the outside twice weekly was working fine cause I hadn't seen a roach for a few months now.  But today I saw a big one inside my small studio, and it wasn't even dark outside yet!  I thought these guys only come out at night!

Arrrghhh!!! I can't stand them.  I grabbed my trusty can of Mortein, and it did the job really quick, but still, it shouldn't come into my apartment in the first place.