too funny! sounds an awful lot like our conversation tonight...

"mummy, i'm full. i can't quite finish my second helping of dinner."
"ok, you ate really well tonight, good job."
5 minutes later
"mummy, can i have some ice cream please?"
"no, you just said you're full..."
"yes, but when you eat ice cream, it melts... it will fill up the holes in my tummy.... so there's still room for ice cream."
"sorry, honey, it doesn't work like that."
"so can i have some?"
"no"
mummy contemplates finishing off the ice cream so i can just say, "sorry, it's all gone" when he asks tomorrow...