After an exhausted search I have finally found a trash can that my little Shi Tzu doesn't even try to knock over.  For some reason, he seemed to think that it was his job to knock over all the smaller trash cans in the house so that he could play with all the Kleenex and whatever.  Well, no more.  He seems to "respect" this one and leaves it alone.  Also the closing mechanism works perfectly, and I appreciated the extra bag liners that came with it.  I will definitely be purchasing more from this company.  It arrived here in a timely matter and it was securely packaged,