We had a customer called De’ath back when I worked at Time(*). He was massively touchy about his name, and it’d been entered on our system without the apostrophe. So we’d answer “oh, is that Mr Death?” and he’d roar “IT’S DAY-ATTHH!!” at us. Consequently, because he was such a cock about it, it never got changed.
Other comedy names we had there included Wayne P. Kitkat, which still makes me chuckle for no good reason.
In a later job, we interviewed a lad called Satnam. Cue lots of ‘Satnav’ jokes amongst the team before he turned up, for a good couple of hours. We’d just composed ourselves when the candidate arrived, so we went to meet him. My colleague, a stride ahead of me, went “pleased to meet you…” (beat) “… find us alright?” I went to pieces, had to take a sudden hard left into the server room so that I could collapse into giggles for a couple of minutes.
(* – ooh, there’s an admission)