My story is very similar, we were out in Castlefield, a mixed group of us were on the piss, all of us were around 19 - 21, I cant remember which bar now (it would have been around 98 or 99) and we didn't go to Castlefield much.
Hucknall starts trying to chat up this girl we were with, she was one of the youngest with us so she must have only been 19 and he would have been almost 40 at the time. She obviously wasn't interested and made it very clear, he pulled out the classic "Do you know who I am?", literally word for word, I was pissing myself which didn't go down well with him but she genuinely didn't know who he was which made it funnier.
Anyway, he retreated red faced and we were all escorted out with me and my mate giving the bar a few choruses of songs we made up on the spot on themes of how Hucknall's old enough to be her dad and fuck off pervy grandad.
It was funny at the time but it's always stuck with me how wrong the whole situation was, I think he was married at the time too just to add a whole other layer of predatory behaviour on top.