When I was on the T this weekend, a girl in front of me handed the trolley driver three dollars cash, which was over the amount she’d have to pay for the ride, but she didn’t have any change. When I stepped up to the pay machine, I started loading money on my card first to pay for the ride. Before I had a chance to accept the new amount on my card, the T driver went ahead and added the three dollars he held in his hand. I was surprised for him doing that, and he responded by reminding me to just say thanks. A little extra cash for a T ride is always appreciated!