The lampshade of shame....
No, ours didnt have one either, but I think some vets do still give them depending on technique used, stitches, etc.
Glad he's not suffered too much after his "ordeal" - clearly not when he's back to full snoozling duties in the morning, at anyroad.
Usually when they've been neutered it can take some time for the hormones to settle down, but given that his would barely have got going, I dont think it will be too long - his exuberance is just natural kitten high spirits. They'll become more sedate around 12 - 18 months old.
usually.