Caller Lisa wants to know why her butt hurts whenever she sees someone else get injured. ELT finds out whether some people really can feel your pain. Guest: pain researcher Stuart Derbyshire. Thanks to queen of Chapped Cheeks Lisa, and to researchers Natalie Bowling, Melita Giummarra, Helena Hartmann, Marina López-Solà, Bridget Rubenking, Jamie Ward, Scott Vrana, and Jamil Zaki. May your cheeks be ever free — hashtag booboobottom.