Does anyone know if hornworms have a potentially damaging bite?

I'm expecting my first shipment of them today or tomorrow, and decided to do a little internet research before I offer them to anyone.

I've read a couple accounts of a worm potentially biting an eye and causing injury, and even getting hooked in a chameleon's throat.

I'm not really interested in cutting them in half or trying to remove mandibles, so I was wondering if anyone has any experience, good or bad, with using them as live feeders.
(I'm getting the smaller ones.)

I will, hopefully, be feeding them to:
White's Tree Frog
Pixie Frog (depending on size...it's a baby)

and I know this is a frog forum but...

Fat Tailed Gecko
Crested Gecko
Fire Belly Toads
Box Turtles

Any info is appreciated!

Thanks,

Ian