Our substitute is strange becausehe looks a lot like Santa Claus.In fact, the moment he walked inwe thought that he was Santa's twin.We wouldn't think it quite so weird,if it was just his snowy beard.But also he has big, black bootsand wears these fuzzy bright red suits.He's got a rather rounded gutthat's like a bowl of you-know-what.And when he laughs, it's deep and lowand sounds a lot like "Ho! Ho! Ho!"He asks us all if we've been goodand sleeping when we know we should.He talks of reindeers, sleighs and elves,and tells us to behave ourselves.And when it's time for us to gohe dashes out into the snow.But yesterday we figured outjust what our sub is all about.We know just why he leaves so quick,and why he's dressed like Old Saint Nickin hat and coat and boots and all:He's working evenings at the mall.