"A Chap Walks Up To Another Chap" joke

A Chap walks up to another chap and says:
Chap - You're Merlin aren't you?
Merlin - Why yes. . it's nice to be recognised!
Chap - Bit of a Wizard. . I hear?
Merlin - Well Yes. . I've been told I'm skilled
Chap - Do tricks and things. . don't ya.. Magical stuff?
Merlin - Magical. .. yes that's correct
Chap - Turn Kings into Frogs. . and that sort of thing. . Is that right
Merlin - Well Yes. . I suppose I could Turn a King into a Frog!
Chap - Ever Mucked up. . Ya know, made a mistake?
Merlin - Well Yes. .. hasn't everyone?
Chap - Can you reverse a curse?
Merlin - Yes I can. .. with knowledge of who applied the Curse and the actual words of enchantment, I could do it. ... Why?
Chap - I'm Cursed
Merlin - Really. .. and how long have you been bewitched?
Chap - Years.....
Merlin - Do you know the words spoken over you to lay this curse?
Chap - Yeah. . can't forget them!
Merlin - What were they?
Chap - something like. .. Do you take this women to be your lawfully wedded wife...