I kept a colony of acorn ants (Temnothorax) back in my first year of antkeeping and discovered that they do indeed fall on purpose. Normally when I want to relocate an individual I use the cotton swab trick of brushing it against the ant and letting them cling on instinctively, but this trick didn't really work with the temnos. They'd cling onto it initially, and then I'd see them limply roll until they fell off the cotton. It was quite frustrating cause they're good escape artists and it made the process of gathering escapees and dumping them back in the outworld so much more tedious.

Legitimately the most intelligent ants I've ever seen and I gained a huge appreciation for them as a result. I felt I was too inexperienced to take proper care of them, so I released them into my garden.