We're not a forum on Big Foot, the Loch Ness Monster, or UFOs... But what should we equip ourselves with for an encounter?

Some sort of recording device, for sure. The video/camera on your cell phone, or even better, a dedicated HD camcorder.

Plastic bags to gather evidence.

Does bear spray work o Big Foot, or will we get into a "what caliber will work according to my friend who knows stuff" debate?