A friendly suggestion if you count any Buffalo Bills fans among your friends and family. Give them doughnuts or other comfort food today. Just don’t tell them they have 13 seconds to eat it. The Bills — a smart, sharp team boasting the NFL’s top-ranked defense — somehow lost a playoff game Sunday night despite kicking off with a three-point lead and just 13 seconds on the clock. Buffalo’s defense melted like a snowball in Gila Bend. The Chiefs flew down the field on two passes, far enough to kick a 49-yard field goal that sent the game into overtime. Given the football by the coin flip, Patric…