urban tumbleweed
just like the rural tumbleweed..

likes to make an appearance during awkward silences but it is a little old man / woman on a mobility scooter.

they have incredible timing and can go up to 12 mph but seam to slow down to be more painful.
while jack was waiting for the pun in his joke to be laughed at the urban tumbleweed made its appearance.. and slowly slid passed.