4/10 at the A-20, 5:00 left in Q1.
When the punter A1 attempts the kick at the A-10, he whiffs completely, and A2, seeing the ball on the ground at the A-12, kicks the ball up into the air towards midfield. B1, seeing the ball in the air, signals for a fair catch at the A-35, and A3 commits (KCI, UNR) as B1 touches the ball in an attempt to the catch the ball, and A-4 recovers the loose ball at the A-30.
note: Treat (KCI and UNR) as two separate scenarios, as I believe there could potentially be different enforcements/outcomes.