Four bank robbers who can't see very well break into a "bank," "sneaking" past a cleaning person on their knees -- right in front of him. They are also being watched on a series of cameras by a group of security guards, amused at what is going on.
They finally got to the "safe" and open it, where there are only cups with an unknown substance inside. “What kind of bank is this? No money in this vault!” one thief announces. Another observes, "Only a bunch of yogurt!” The third, adds, "We should have some to stop us from starving until we proceed to the next bank.”
Since they're wearing bad eyeglasses, they can't figure out what's in the cups. So he takes a gulp, and even comically gargles it.
The guards see them drinking the sperm on camera and all vomit simultaneously -- the criminals have broken into a sperm bank and he's got a sample in his mouth.
The narrator says, "If you have problem with your eyesight, come to eye specialist Top Charoen for advice.”