What makes actual sheep funny? They are not smart...
I imagine these sheep thinking, "Where are all these cars coming from... and why do they look exactly the same?!"
And credit to YouTube user LankyDrummer for thinking of this Python quote:
"Follow. But. Follow only if ye be men of valour, for the entrance to this cave is guarded by a creature so foul, so cruel that no man yet has fought with it and lived. Bones of full fifty men lie strewn about its lair. So, brave knights, if you do doubt your courage or your strength, come no further, for death awaits you all with nasty, big, pointy teeth!"
And what makes animated sheep funny? They are smarter than humans... A favorite character from Aardman Studios.
Have a great day... not a BAAAAAA-D one!
(yup, I went there)