

- Should be as easy as throwing a rock.
2&3. Both pressure and shrapnel are deadly. For pressure, imagine a bubble machine blowing bubbles. You could poke them and they pop. A slight breeze could pop them. This is due to a pressure difference. When an explosive creates a pressure difference, the cells of your body are like the bubbles. They pop. Pressure will have a hard time getting around solid objects. A wall or a chair might be sufficient. Shrapnel will be more difficult. If this is truly a concern, I’d suggest having a “decorative” metal pot. If you could cover the grenade with it, that could potentially nullify its effect. Put as much matter and mass between you and the explosive as possible. If you have nothing available, lay on the ground with your head furthest from the grenade and your feet pointing towards it. Basically you would want to be able to draw a straight line from the grenade through your feet and out your head. Because that’s the direction the shrapnel will take.
Edit: some people in the comments with a fundamental misunderstanding of how weapons work. A grenade is a purpose built weapon that was designed. If you took the explosive out of a grenade, put it in a metal pot with the lid welded on, and detonated, you’d just have a mangled pot. Pots won’t break up into shrapnel it’s gonna look like the T1000 after getting shot with the grenade launcher. And any shrapnel that makes it through, will have its kinetic energy severely reduced.



While the pot would suffer the brunt of the blast, that’s its purpose in this situation. It also has much more structural integrity than your squishy flesh. If the pot is destroyed, that likely means you are still alive.
A few other thoughts came to mind, something like a weighted blanket or sand bags.
Unfortunately, you’re correct that it would likely be impossible to know how long until it detonates. I don’t have any idea if you can tell that or if possible, how.