Secretaries do it with their fingers. Sheep do it when led astray. Shubert didn't finish it. Skunks do it instinctively. Snakes do it in the grass.
Snipers do it with a bang.
Snobol programmers do it in strings. Soccer players do it for kicks. Soccer players have leather balls. Soldiers do it standing erect. Sopranos do it in unison.