Funny experiment with vitamin B1 and bananas

When I was at in secondary school, I took part in a biology class. My teacher said that vitamin B1 could help human beings and animals absorb nutrition better. My family has a garden full of bananas, so I decided to make an experiment on a tree with many bunches a bunch of bananas. I stirred vitamin B1 into water and inject that the liquid to into the banana, 1 injection on 1 banana for each bunch. Nothing happened, so I forgot stopped that the experiment. 15 years after later, my mother told me a story about a beautiful and delicious banana stem with 1 rotten fruit on each bunch. She said she reserved that bunch for Tet holiday, but suddenly it has rotten omes. I immediately remembered that terrible experiment and told my mom about that it. She laughed for about 10 minutes and continued laughing each time she saw me for the next month :-)