I would have to call him on it. Something like "Man, what the fuck is going through your mind". As far as the cat throwing shit paper in the sink. "MIDEVIL".
You know, you think of all these witty things to say AFTER it happens. I was so freaked out I didnt know how to react. The worst part was I had to walk past him on my way to the pool..... I guess he is lucky someone else didnt beat the shit out of him...