If they give your kid a rock tumbler, you’ll know for sure that they hate you. Until that point, it’ll be difficult to be certain.
Before we had a kid of our own, my husband and I gave the son of our good friends a potato shooter. We were very embarrassed when we witnessed the consequences: lots of annoyance for mom and dad who had to get a potato and punch out the pellets, which took more strength than a little kid has, just so he could shoot disgusting little organic bits around, possibly into corners where they would lie unseen and progressively more moldy - and rotting potatoes smell hideous - or possibly he could shoot a little friend in the eye.
We really adored the couple, though, and apologized profusely. They were excellent sports about it, I’m happy to say. And of course their son LOVED it. He’s in his 30s now and still has fond memories of us. 
Oh, God yes. Forgot about that demonic thing!!
I would love to have an excuse to give this delightful little goose as a gift.
And I’m guilty of wrapping gifts with glitter ribbon at Christmas, only because I panicked one year and purchased a large roll of the stuff, and I would really like to use it all. It’s very pretty sitting under a tree, but the glitter starts flying like animal dander the minute one of the packages is disturbed.