Emergency ….. Water From a Tree?

September 3, 2015 | Emergency Preparedness Survival, How To
| Water Source in an Emergency? Head for Water From a Tree!
Great video demonstration of how to tap into a tree to get water in an emergency. It helps to know what trees to tap into and what how to do it.
I heard that someone else taps into grape vines for water / liquid.
Have you tried this? How did it work?