Shenanigan(s) and Hooligans...Wow, Where did that Come From?

So today the word "shenanigans" crossed my mind, and I began to naturally wonder: why is it plural?
I did a bit of research, and the Oxford English Dictionary says the origin of the word is obscure, but the word is usually used in the plural.
So, is it plural or singular?
Consider these words: jeans, scissors, binoculars. They are plural, yet represent a singular entity because they have two parts to them. This is different than shenanigans, because its meaning is singular while the word is plural without the meaning having any two-part implications.
The Oxford English Dictionary Online defines "shenanigans" as

"Trickery, skulduggery, machination, intrigue; teasing, ‘kidding’, nonsense; (usu. pl.) a plot, a trick, a prank, an exhibition of high spirits, a carry-on."

Mostly due to me being tired, in addition to nobody contesting my previous blog posts, I will conclude that the word "shenanigans" is plural because "hooligans" is required to pull off shenanigans. BAM! That's plural and rhyming!

So friends, always use the word "shenanigans" with the "s", because if you don't, one hooligan will be empowered to pull a shenanigan, and then each hooligan causing a shenanigan can build up to the most ridiculous shenanigans possible! Save the planet by using this powerful word...correctly.