first off, the fact that this happened at sam's club tells us a lot about you. this probably happened right after you picked up the 5 gallon jug of mayonnaise while you were on your way to the extra large tubs of cookie dough ice cream.
anyway, does anyone get the feeling that later that night, some guy and his kid were laughing their asses off, telling people about the fat idiot with down's syndrome that was flexing at them at the store? honestly, i pray that these stories are true, because if they are it would be the funniest thing ever.