Those are not so bad.
Icky as you say, but not much worse. Too bad they are small, because if they were big enough and you had a few to spare, they would make excellent fishing bait. The worst these guys can do is is piss heavily alkaline urine, or what ever it is that the simplest of arthropods can do, on your hands if you pick them up. Generally, they would prefer to eat rotting wood, already sweetened by a few generations of fungi, so they are better off outside, if you are brave enough.
They are wiggly, but nothing to worry about.