This monkey does not mess around when she/he is thirsty - well, there's no time for lids in the wild.
A photographer took a photo of a mother monkey drinking out of her mouth-made drinking hole at the bottom of a bottle.
However, her baby appears to be more clued up as he attempts to show his mother how to unscrew the cap.
Puskar Nepal, 21, a freelance photographer, shot the video in Swayambhunath, more commonly known as Nepal's Monkey Temple.
He said: 'I was sitting on a bench with a bottle of water in one hand and a bag on the other hand.
'Suddenly a thirsty monkey snatched the bottle from my hand and the younger one joined her.
'She made a small hole at the bottom of the bottle with her sharp teeth.
'It looked like the younger one was trying to open the cap on a number of occasions and teach his mom the right way to drink water from the bottle.
'I was too close to them taking the moment into a frame and I was afraid of them snatching my camera.'