For use by the TSA instead of their $1.4m iOS app...

left-or-right.py

import os, datetime, random
while True:
	os.system('clear')
	print "ENTER to continue, or type 'quit'"
	print datetime.datetime.now()
	print ''
	print(random.choice(('Left', 'Right')))
	print ''
	prompt = raw_input("")
	if prompt == 'quit':
		quit()