Brake!

So in covid times I've had this (almost) daily ritual of spending time out in my car listening to music and reading in it. Today, I took this ritual with Mary Beth to the park and did my reading there while she walked. Coming back I started noticing funny behavior with my brakes. The feel and amount of pressure I needed to use to stop was changing. At a point the dash light came on for my brakes. I checked and the brake fluid level was low to empty. So I took the other car to pick up some brake fluid. Not sure if it's a leak or what, but I refilled it and it at least didn't immediately all drain out. I'll see if it's holding and works properly. Last night Mary Beth and I played another game of Ticket to Ride. Now it's back to work and it's back to being quite a cold morning this morning.