I don't know about you, but I have to use the bathroom 1-3x during the day and I hate leaving my laptop to the public while I go, but I also hate packing my whole setup up and sleeping my laptop.
Isn't this what security cable locks are made for? Granted these days fewer devices feature a Kensington lock though ofc.
That's another problem. I've several cafes where I put some expensive Apple gear and disappear for a while. It depends on the cafe and the relation you have relatively to the owner/waitresses and the clientele.