What would you do if someone who works with your dad..

[IliaDN]

...doesn't seem to like your dad and said things about him that weren't true? Let's say this happened on front of dad's other co-workers and your dad doesn't know about it.

Is it possible to catch that ***** ( any bad word you wish ) in some dark place and beat **** out of him?
Just not to inspire violance you may scare him, instead of beating.

[King Henry V]

Spray "This man is a sexual pervert" on his car. It may not be true, but you never know.....

[Voigtkampf]

I'd send in my cleaners...

Oh, while we are at it, I almost forgot...