We have heard the methods that some actors go through to make themselves cry on camera. There is the smell the onion, eye drops, pull out the nose hairs and/or think of something absolutely atrocious. And those ways might work, but they are not as effective as getting a really hard kick right to the balls. If that doesn’t make a guy tear up, I don’t know what will.
Dear actors, I am offering up my services to be your punter, if you need someone to help you prepare for a scene that calls for you having tears streaming down your face. In fact it is a specialty of mine!