Can you imagine being stuck in the dawn of human agriculture, and you seek shelter in a nice cave that you found.... And then a Giant Sloth just lumbers in after a bit.
I mean, I imagine any Homo species of the time would know not to go inside one of these, but still.
I hear what you're saying, and I recognize anyone inside would be safe from being eaten.... However, as with an elephant, I wouldn't want to be woken up in the middle of the night having intruded upon their home.
nah they'd be chill. They'd be like "waaat" and make some initial annoyed sounds at first, but then once you pull out the bong they'd settle down real quick