So the other day I (F)  was at 7-11 and had coffee in one hand and my phone in the other. I was googling a destination on the gps tracker and sort of just whizzed on through the open door, not realizing someone was holding it open for me. 

I thought it was just propped open or something, really I didn't think much about it. 

Suddenly I heard "You're welcome!" in a loud male voice behind me. I swung around and saw a tall bearded man glowering at me while letting go of the door. 

I was so embarrassed I said nothing and just kinda ducked into my car at and continued staring at my phone for a minute then left.

I'm pretty sure IATA here but wanted to know what others thought.