Maybe Scott has the number of limbs on a reptile somehow mixed up with the count for an insect.
But they’ve definitely got chameleon heads and tails…
and the joke is based on color-changing.
And yeah, yeah, we now know that most chameleons don’t change color to match their surroundings…
It’s more likely to be a response to environmental factors, or stress, or to communicate with another chameleon.
So let’s just call it “cartoon biology”,
and file it with other “only-in-a-comic-strip” reptile traits like speech, wearing clothes, and working in an office.
Afficionado… he said he was at the office, but his coloration gives away his lie….
His chest has changed color to match the bar he was facing….
including the glassware and the bottle.