Because the extra bean would be too farty.
Would you like fries with that?
Greece! (courtesy of my ten year old)
Paddy O'Furniture!
Because it rhymes with Bank Manager
Because if they had one more, they would be 240.
Because if you add even one more it gets "2 farty".
Because any more would be too farty.
Because one more, and it'd be too farty.