Blaze does it, too, as did Maxx before him.
It does tend to freak people out who are not dog savvy or who know nothing about Basenji's because they think he's waiting to attack their dog. We try to reassure the other person that, no, Blaze isn't going to attack their dog…it's just something Basenji's do. Some people aren't convinced, though...we had one person in the RV park where we spend the winter go so far as to pick up his dog everytime they saw us coming. That dog, who started out being friendly, turned into a barking, growling dog everytime we'd walk by.
Some people simply shouldn't be allowed to have dogs! 😉