All the time!!! She constantly comes home.with block, toys, dinosaurs, cars, pebbles etc from playgroups, schools and friends houses. I have to always take it back the next day or next week. She also takes stuff in shops. Most of the time i see it, so can put it back, but we have a few items, usually small soft toys she managed to hide that finds their way back to the house without paying. Gggrrr.... She also collects lots of little toys at school in buckets and then gives it to a teacher for 'safe keeping' so that other kids won't play with it. Lol. I have no solutions yet.
My boy has done that and its only happened a few times before and after i spoke to him he seemed to realise he shouldn’t do that and it stopped. But you just never know with toddlers lol
I haven't either but when my 3yo tries to pick up rocks to take home or touch something that we don't want ( like touch dog poop or a bug) we tell them it stays and is working. Hands off or if already holding put back it's working and needs to keep doing a job now. I hope that's helpful