Sam: Do you have to sneak up on me?
Al: I'm sorry. What do you expect a hologram to do? Knock?
Al: I'm sorry. What do you expect a hologram to do? Knock?
Sam : Do you have to sneak up on me?
Al : I'm sorry. What do you expect a hologram to do? Knock?
http://www.tv-quotes.com/shows/quantum-leap/quote_11362.html
