Forum:Where can I find the can picking Hobo?

I have been binge watching the simpsons, and am now at season 15. Around the end of season 14 and beginning of 15 there was a can picking hobo with a shopping cart, but when I look back at the episodes I can't seem to find him anywhere.. Does anyone know what I mean and what episode it is? It's quite a short feature, it just shows him picking up a can, throwing it into his cart.