// we run the helper, but if we lose that race once in a while it's okay: the
			// select will just proceed immediately. Not a big deal.
			// For short tests we can grow [sic] the timeout a bit without fear of taking too long
			pause := 10 * time.Microsecond
			if testing.Short() {
				pause = 100 * time.Microsecond
			}
			time.AfterFunc(pause, helper)
		}