ump your blind - wish I was for a second

[scyguy]

You could have ruled the drop was deliberated and broken out 6.05(L)

An infielder intentionally drops a fair fly ball or line drive, with first, first and second, first and third, or first, second and third base occupied before two are out. The ball is dead and runner or runners shall return to their original base or bases; APPROVED RULING: In this situation, the batter is not out if the infielder permits the ball to drop untouched to the ground, except when the Infield Fly rule applies.

and then be glad you have on armor...!

From reading the original post, this situation was in no way intentional. Two kids running into one another to try and make the catch, how is this intentionally dropping the ball?

The rule you are referring to often occurs when an infielder is trying to create an easy double play situation by deliberately dropping a pop fly.