A farmer was working on the land and was shovelling manure into his wheelbarrow.
A patient of the psychiatric hospital located just over the fence was watching him,and shouted,"Hey mister what are you doing?"
The farmer replied,"I'm shovelling !@#$%^&* into this barrow".
The mental patiens shouts,"Why are you doing that then?
Farmer replies,"I'm taking it to put on my rhubarb".
Mental patient replies,"You'd be better off in here ,we have custard on ours!"