Geckos are not plentiful up here on the highveld. I hope to get some from the warmer climates or else I must go tipping anthills to find Pachydactylus affinis which should be the right size.
Otherwise it is forcefeeding but not like Phobos. It may not be fatal but this is what a horned adder bite can look like:
I will pin them down with a sponge .... I am a bit of a sissy I suppose.