And the only reason it's not all 25 is because we didn't have snakes in rivers to throw rocks at.
I would add in:
26. Jumping from a cliff into a lake or pond.
27. Sprinting through a field while a bull tried to catch you and stomp a mud-hole in your ass.
28. Learning how to pour a perfect cup of beer at age 5.
29. Bareback horse riding. No bridle either.