Crazy !!! The surprise in the lift

Actually, I just wanted to go down to the city with my cameraman and, unsuspecting, I took the lift. But when the door opened I couldn't believe my eyes what I saw. A little blonde kneeling on the floor with the guy's cock in her mouth. Now there were exactly two options. Either take the stairs or me and my cameraman just go for it. What do you think we decided? What would you have done?