You walk across a carpeted room on a day when the humidity is very low, reach for a doorknob, and get zapped.
(You; walk; across a carpeted room; T:on a day; T:when the humidity is very low) (the humidity; is; very low) (You; reach; for a doorknob)
You the humidity You
walk is reach
across a carpeted room T:on a day T:when the humidity is very low
very low
for a doorknob