Last week I proposed to my girlfriend, who is smarter, more educated, and makes more money than me (she's a doctor).
Today, I did 100 regular pushups, 100 pushups with a 25lb pack on (...in sets of 20), 240 jumping lunges (

), ran 5km with 100m sprinting intervals, and grew about a centimeter worth of beard.
But the first part totally took way more cajones.