we need this for wolf spiders and poisonous bugs out here in the desert. they are HUGE and i am scared to see them up close AND scared they would try to retailiate, in which case, i would be poisoned.
It would be the same as catching it in a cup and letting it go. You have to pull the top off the catch chamber if it was in the bottom it should give you enough time to step away before the catch had time to crawl out of the tube. After something has been caught it usually isn't looking for a fight, but to get away to avoid being recaptured.