Culture-dependent then. I did get dozens of impractical, boring, useless gifts that were a net zero value to me (or slightly less). I've never responded "thanks

Culture-dependent then. I did get dozens of impractical, boring, useless gifts that were a net zero value to me (or slightly less). I've never responded "thanks ... I guess" or implied that, because it'd be super-rude. Maybe not a full nuclear option, but a heavy offense, to be remembered for years.