Rocking Food Cover

Sherilyn my little rascal can find ways and means of entertaining herself. One of the things that she loves to do is to sit on the inner part of our stainless steel food cover and begins to rock herself inside - backward, forward, left and right, like a wooden chinese rocking doll. Each time she rocks on it, I try to reprimand her but she looked so hilarious and cute that I just can't get angry with her. This is how she looks :






Notice that the food cover is now lopsided?