Picturing me as someone who "lacks the strength" "to exert his own will toward a spiritual value higher than that of mere vermin" is offensive.

Ok, I don't think commenting about "cockroach well being" on this thread was a good idea on my part. I want to make myself clearer: I have no problem with killing them, not even (actually specially) for scientific or pest control purposes. Summarily killing them is exactly what I do when they appear around me.

What I won't do (and find ethically or morally questionable besides cruel) is to play with them while inflicting pain. They have nerves and neurons and they surely feel pain. The kit I linked, sold as a toy, is pure animal cruelty. No matter if it tortures a cockroach or a dog.