My family's nutty in general, and with having snakes in the house for 18 years and carnivorous plants for approaching 13 getting into mantids did not come as much of a shock. The biggest displeasure they have is that I have roaches to feed them with (or a mantid jumping on them if I should so orchestrate such a thing; only happened once to my sister but it was hilarious, and fully unintended), but mostly it's another cool, odd thing hiding in my room. Other people find it interesting, though the level of interest varies from willingness to hold to "I'll watch from Facebook."