AITAH for not giving up the bathroom to a Crohn’s emergency, resulting in their accident?

AITAH for not giving up the bathroom to a Crohn’s emergency, resulting in their accident?

This happened 30 mins ago. I’m on a job with a portapotty, my stomach has been a mess the last few days, not sure if I’m getting sick or what. I’ll leave it at that.

I feel a bowel movement is coming on quickly and hustle into the single use portable bathroom. Before sitting down, I grab a ball of TP, a couple pumps of purell and wipe off the seat. As I’m doing this I heard guy hollering for me to “wipe fast and exit!”, him hearing the sound of the toilet paper roll being pulled.

I responded I just walked in and would be a few minutes. He says “nope, I have to get out right now, he’s having an emergency and I kid you not, he slides a business card through the crack of the closed door that said something like: “This person has Crohn’s disease, and is prone to sudden bathroom emergencies. Please allow them the courtesy of cutting any bathroom lines.”

I have never seen anything like that before. But no problem. Through the door I said I’m having stomach issues as well but I will finish as quick as I can to help you out. He yells back “No, no! I’m going to sh*t my pants. Open the damn door!”

There was definitely a less rude way to ask but it didn’t matter as I was also having a last minute need of a bathroom. So I finished up and exited within 3 or 4 mins.

When I got out I saw him at his van getting inside. I said “Hey man. It’s all yours.” And he tells me: “F*ck off. Your selfishness caused me to shit my pants, and now I’m going home.”

Speechless, I just said “I’m sorry, I honestly just had to go badly.”

His last reply was it does not matter. His doctor gave him this card because he has an actual disease that gives him less than 30 seconds and people with IBS or Crohns always must be given priority.

Was I the AH here? I always thought whoever got in first used the bathroom. I moved it along once I knew he needed it but I too had to use the bathroom quickly or I’d have exited for him, despite him demanding orders vs asking politely.