Good heavens, for a solicitor you really are a shockingly bad professional. I certainly wouldn't hire you for business based on this.
The correct thing to do would be to simply say 'Well, sorry for overreacting, how about we sort this out properly?'
The guy has already offered to give it back if you can take your hand of your e-prick for a moment and say one word to him.
Come on kids, lets work this out together!
S O R R Y
S is for Silly, which you're certainly been.
O is for Outraged, you stroppy drama Queen.
R is for Retarded, which your actions have become.
R is for Rediculous, which made this thread fun.
Y is for You really need to get your head from your arse you pompous fucknugget.
Hooray! We done spelled a word!