Not all babies feed the same. I was lucky, my kids didn't have a problem downing a bottle. My daughter is a picky eater now, but when she was a baby, no problems.
This little girl needed to gain some weight and apparently, the parents have tried everything else. So dad decided to put the formula in a "beer bong" and see if his baby would eat from there.
Judging by the end of the video, it looks like it worked!