I had a dog I taught the old “poison” gag. You show them a dog biscuit and say POISON!. The dog looks it but won’t touch it. Took about 10 miniatures to teach that.
Then the DOG add a neat twist to the joke. No matter what I said or did he wouldn’t eat the biscuit until I nibbled a piece of it. Then he’d gobble it up. Like he didn’t trust me.
The perfect twist to that would have been to teach him to dramatically play dead immediately after eating it....;D
[the Dobe puppy sniffs everything hubby hands her but gobbles whatever snack I’m holding] LOL