Anyway, the other day, after being in the garage with the heater on
for a couple of hours, I unlugged it and noticed that the plug was
warm, rather foolishly I stuck my finger on the prongs and the live
one was bloody hot.

Not at all foolish: the plug wasn't live, after all, and you've found
something which needs attention.


Foolish because it burnt my finger!

Thanks people, I'll have a look at what you have all said before using it again.

Cheers


Dave