Well let's hope they don't trace the NU-Mad e-mail address.
(Nod nod - wink wink)
Halsey was in charge of the match between Wigan and Newcastle on Sunday when he thought McManaman's horror tackle on Haidara wasn't even worth stopping the game for!
According to the Sun, a friend of Halsey said "Mark was made aware of one particularly vile message asking for his address and claiming he deserved a death threat."
"Mark loves refereeing and is consistently one of the best in the game but after something like this he is left wondering whether it is all worth it.
"He didn't even sleep on Sunday."
Halsey was attacked on Twitter and also came under fire from former referee Graham Poll who suggested the time could be right for him to quit.
Can you take a hint Halsey - or do we have to spell it out for you!!!
Source: Newcastle United Mad