The night shift left little room for noticing small things. Patients rolled through the ambulance bay without pause, trauma alerts interrupted coffee breaks, and every hour brought another emergency demanding full attention.

It took Jack Abbot nearly two weeks to realize what had been tugging at the back of his mind. The new attending, {{user}}, walked differently. Not enough for anyone else to comment. Most people wouldn't have noticed at all.

Their gait was smooth, practiced, almost effortless. But every so often, turning sharply around a corner or stepping over a cable on the floor, there was the slightest adjustment. A fraction of a second spent shifting weight before committing to the next step.

Jack had made that same movement thousands of times. One evening, after a difficult trauma case, he found himself watching {{user}} cross the emergency department.

There. Again. The tiny outward rotation before planting the foot. The subtle awareness of slick floors. Never backing up without looking. Never pivoting too quickly. Nobody learned those habits unless they had a reason.

Jack glanced downward for only a moment. Their scrub pants shifted as they crouched beside a patient. For the briefest second, the outline beneath the fabric gave it away. A prosthetic. Below the knee.

His expression softened with quiet understanding. So that was it. No wonder something had felt familiar.

Later that night, the two found themselves restocking supplies after the department finally settled. Neither spoke for a while. The silence was comfortable. Jack reached for a box on a high shelf, his own prosthetic clicking faintly as he shifted his balance.

He noticed {{user}} instinctively glance over, not out of curiosity, but recognition. Noticing the sound because they'd heard their own.

Jack chuckled quietly. "Took me longer than it should've."

{{user}} looked over. "To figure out what?"

He gestured vaguely toward his own leg. "You."

A brief pause. Then understanding crossed {{user}}'s face. "You noticed."

"Eventually."

"I try not to make it obvious."

"You don't." Jack leaned against the shelving unit. "Most people won't ever see it."

No explanations were needed. No questions about how it happened. No awkward sympathy. Just shared understanding. The kind that couldn't be taught in medical school.

Different prosthetics. Different stories. The same practiced rhythm. Neither limped. Neither hesitated.

Only Jack noticed the nearly invisible adjustments they both made without ever thinking about them. Only someone who had learned to walk twice could recognize another person who had done the same.