I wonder if he was tricked because everything on the end of those feeding tongs has been food for him! I have tried to hold up some fruit for my Sambava and he gets all intent on it because I hand feed him so much, once he zeros in on it he realizes that it's not a delicious bug and looks at me like I am the fool!
Yeah, they all repeatedly take it. My female especially loves squash and apple. They dont just take one bite either. I have sat there for 5 minutes letting one of them take bite after bite and chew it up in between. I'm pretty sure they know its not a bug after the first chomp I thought it was a fluke at first when I tried holding it out for my breeder male and he took a bite but he takes it about once a week. I do have to hold it with the tongs though. If I put a piece in there and leave it they wont touch it.