I doubt if anyone would like that joke
no
i don't thing so
Yes, he's quite laid back is Gareth... a 'nice boy' in more ways than one. In school we had a boy like that... we used to call him 'Si?n codi m?n yn 'gawod!" True story!
If he thought you were saying it in a hurtful way, then no. If he thought you were just having a laugh and was in a good mood, he probably wouldn't mind too much, but to be honest I don't think he would find it funny.
I think Rugby players are usually quite chilled out. You can take the **** out of them for anything. I like people like that, live for bant.