“I want to get in the ambulance. I can't feel my legs.” That was Adam Walton, a Janesville firefighter/paramedic after his third dip into the frigid waters of the trout pond at Rotary Botanical Gardens on Friday. Walton, a fishing guide in his spare time, had voluntarily jumped into winter waters once before, about three years ago. The video from that plunge has been viewed more than a million times on various social media, he said.