Yes, I've have to agree with everyone here that Dan did indeed get carried away with his actions
they were both malicious and violent and it was not necessary giving the circumstances.
When witnesses go door to door in field service most wouldn't perceive that a No Trespassing sign on someone's house
would pertain to them or No Proselytizing, I doubt if most witnesses know what that means, so you have to give them a benefit of doubt
A strong verbal castigation put upon the callers, with a put me on your do not call list, was all that was needed there
If by accident that it should happen again I hope Dan approaches the situation a little differently and humanely.
Sorry Dan but you you dropped the ball on this one
Be cool my brother... be cool