Maybe the word "thief" is a bit to harsh. But I am sure we have lots of "thiefs" here on the forum

Maya loves to look around on the table after we had lunch. She always wants to know IF we had chicken; IF there is some left on the table, she always steals it. Maya cannot resist to a good piece of fried chicken

Inka is a good girl, no stealing

But then there is Zazou, AND Snoopy ! OMG, Zazou always jumps on everything, checking if there is nothing she can use as a toy. No need to be round like a ball, a pencil is fine too!!! Last week I left my new ring (made of orange beads) on the table... . Guess where I found it back: under the couch!!
Snoopy is as bad as Zazou!! She will come and steal my pencil even while I am still writing with it!! She is a little devil, he he!Last friday my hubby was eating a homemade rice-cake. He left it on the table while he went to get his newspaper. There came Snoopy: she jumped on the table, took the cake between her teeth, and disappeared with it!! When I tried to take it from her, she even growled!!

so, more thiefs on PT ??