He wasn't amused in the slightest, and was about to call in for back up when she spoke the magic words, eyes widening. No, that wasn't possible. No one had managed to replicate the formula in all these years, let alone improve on it.
He took off after her, tackling jumps that would make normal men back off, landing hard, falling into a roll, and then back to his feet still running. This was getting to be more then a bit embarrassing, Tony could not be allowed to find out.