I caught a clip on the news of a bulldozer clearing ice from Lake Michigan. Why, you say? So glad you asked.

Apparently there is a Polar Plunge on Sunday. The 14th Annual Chicago Polar Plunge, to be specific. Yes, that means that people have done this, in Chicago, 13 times before.

To the best of my knowledge, a polar plunge is when people, brains addled by the winter, lose all orientation as to temperature and go for a dip in the lake anyway. It’s my understanding that along with the urge to submerge oneself in water more frozen than the margarita you’ll be sipping lakeside come July, there are additional side effects. Like lost glove collecting and the inability to taste anything hot.

It does benefit a great cause, the Special Olympics, but I’m pretty sure they’re open to donations that haven’t been marinated in freezing water. At least the temps are predicted to be in high 20s on Sunday. That’s nearly 30.

But I haven’t told you the best part yet. Apparently “The Tonight Show Starring Jimmy Fallon” star Jimmy Fallon will be taking part while wearing a suit and a tie, and encouraging others to put on ties with whatever it is you wear to throw yourself into icy water.

Chicago loves you, Jimmy. Frozen or fully thawed.