This is NOT ALLOWED! Not, not, not! Baaaaaaaad puppy!
However, as I learned years ago from my very wise aunt, it’s often best to capture the misbehaviour before you put a stop to it. (You can click to enlarge the smaller picture.)
Because, really, the picture-perfect puppy (or child!!!) is very sweet, and will make you smile… but it’s THESE pictures that will make you laugh.