Now I'm a farmers daughter, and am not grossed out by many things. But even after many years working in an old building riddled with the buggers, I just can't stand cockroaches. It's they way they are so still, then so rapid in their movement, and the fact they are damn ugly!
Method of disposal? Lock dogs outside, spray the ugly bugger till it drops, pick up with kitchen towels and flush down the loo. Then shudder.