Assume the squat position and hold it for as long as you can--- longer than your friends. You'll start to feel the burn, but that's the point.
While your legs still hurt, visit theacpa.org and make a donation. Be generous, your pain will go away in just a few minutes.
Challenge others to complete a wall squat by sharing yours on social media. Don't forget to include #GiveASquat4Pain in your post.