LOL well they do say tripping hazards are the number 1 cause of accidents in the workplace so for US that is definitely true

I admit to being one of those people who has a 'when your done return it to its home rule' in the playroom.... and while I do not mind them taking out lots of toys if they are 'engaged in play' with them all if the playroom starts to get 'unsafe' due to sprawling play we stop and do the '2 second tidy' and the group all helps to make it 'safe again' .... I have clients who tease that their child has become the 'Tidy up Police' at home and will say things to them like 'you need to put your briefcase in its home dad someone is going to trip over it and get hurt' or 'that's a tripping hazard' to anything that is on the floor or stairs