Does hissing always mean fear or aggression or it can be a part of the play?
Sometimes when playing hide-and-seek or chase games with a kitten, he allows himself to be chased into a corner, and then he turns and hisses. Does it mean we've overdone something, like stayed too close or chased too far, or it is of no concern in such games at all and is a healthy part of them?
Note, these games do not include intentional startling, hurting, holding or carrying him around against his will.