I HATE ROACHES!!!

I have done all I can to make sure no roaches enter and still I see roaches in my apartment. And it's not even one of those tiny vermins. It's huge water bug types! *faints* *hyper-ventilates* The building has monthly spraying and when they spray, all the roaches scatter. I think I know where they are coming from. I can deal with mice. I can't deal with roaches. Something has to be done.

Where is my expanding foam?!