leaving a dinner appointment, and there was about a foot of snow on the ground. We had let ourselves out of the door, and one of us farted quite loudly (honestly don't remember which of us) and we acted like the fart was a mouse we were trying to catch. So one of us pointed at a random spot in the snow, just off the sidewalk, and yelled "There it is!" and jumped onto hands and knees in the snow trying to catch it. We jumped over each other several times trying to catch this imaginary fart mouse, until I looked up and saw the couple standing on the porch, watching us in silence - moderately horrified. We didn't notice they had followed us out, nor did we think they would as it was probably 7°F outside....but there they were.
We stood up, shook ourselves off, and just walked away. I was laughing....as I would never see them again. I was heading home a couple days later