A non-romantic example: This troper's first year of college, the school had the freshmen show up a week early for orientations and to get acclimated to the campus. This troper didn't know anyone and was normally
a bit socially awkward. About Wednesday of that week, the dorms decided to have a fire drill. This troper, being a newbie, didn't initially recognize
that godawful sound as a fire alarm, and, when everyone else in the dorm started bolting for the doors, he just stood there. He turned around, and a guy
wearing a cowboy hat, a duster, a football jersey, and shorts came barreling down the hallway at full speed. After he finished helping to peel this poor troper off the floor, they got to talking.
They've been close friends ever since, and enjoy relaying the story to other friends whenever they get the chance.