I see you've taken a leaf out of my book.
Littlefoot: Oh what is that horrible smell!?
Ducky: ERM... *clears throat* Er that was me actually.. I made a rude bottom noise I did I did..
Petrie: Oh Ducky! That gross! Do it when your best friend stand right next to you why don't you! Blarrr! Me think me gonna me sick! It stink worse then Spikes!