As above, many of us will have anecdotes to relate, usually involving food.
For my part, we were sat behind the goal at Northampton way back when, with FK sitting on the front row. That day Nobby's were giving away free packets of crisps to us fans and I swear he managed to get a whole box full which he duly ate during the game!
On another occasion, I saw him abusing his father in the side shed thingy at Cambridge United's Abbey Stadium because dad wouldn't give him any more money for food! It was quite sad, really, and to think they are both dead now...
RIP Matt (and your dad).