157: And Now the Punchline Has Been... Spiked!

Explanation
In the original strip, the lady's pet was a more pet-like quadripedal dragon. Here, it's been changed to Spike, Twilight Sparkle's #1 assistant in My Little Pony: Friendship is Magic. He'd likely consider being made into a pet degrading, never mind being put on a leash.

The image of Spike was taken from a screencap of the first season episode "Boast Busters", when he's walking through a door he just closed; said door was made to appear in the middle of the library. The title is a play on a line by Pinkie Pie in the Season 1 episode "Owl's Well That Ends Well".

This strip is one of a very few of Nyperold's strips that utilize his own scan of a print comic rather than a digital version, as they are old enough to be locked behind a paywall. These print comics can be hard to edit cleanly with software like MS Paint, hence the blotch of beige where the original dragon was mostly found.

The author writes:
Original Hagar the Horrible strip: 1986-12-12.

Transcript
Lucky Eddie: Gee, that's a cute pet, isn't it? Hagar: Yeah... {The pet in question is Spike, held on a leash by a lady in a fur hat and coat. Spike is not enjoying this.} Hagar: but when they get bigger they're a lot of responsibility...