Funny you should say that mate, as a kid I overheard my dad saying to my mam about me -
"He's nutty! No don't laugh, I really do mean it, he wastes all his pocket money on silly plastic model aeroplanes then hangs 'em on string from his bedroom ceiling in full view of the street, I dread to think what the neighbours are saying about him.
When's he going to start saving his money instead?"
I got my own back though, I filled his radio with sand from a builders yard down the road and enjoyed his bewildered expression when he tried to tune in the Clay-Liston fight but all he got were electrical crackles and splutters. Hehe

Then the sand began pouring out in torrents like an Indiana Jones temple and he yelled,
"I don't believe it, its full of bleddy sand, how the hell did that get in there?"
Needless to say, I just sat there with a butter-wouldn't melt expression.
He's been dead now 40 years but I wonder what he'd say if he knew I still buy models, I've currently got my eye on this neat baby down the model shop..