Killed one a few days ago and had the misfortune of having to destroy another just now. Roaches are rare here and I wonder why we have two recently. Good thing this one was in the toilet, which increased my options of dealing with it. They are too fast for us humans and we are forced to slow them down with some insecticide sprays.
It is also easier to dispose of them if spotted and killed in the loo. Dump it into the WC. Throw some toilet paper in and flush. If you missed the paper the damn roach will not go down. I am quite experienced.