Netanyahu would probably rather his people be actually hurt, so that it could bolster popularity of ongoing war.
When nothing happens, and security manages to intercept these things - people start questioning if they’re actually in any kind of danger. Occasionally leaders have allowed things to happen to their citizens, in order to garner acceptance for going to war.
Looks like the fine folks here have you covered. This should be a pretty easy DIY to tackle. As others have said though, that glass can be incredibly heavy, and it’s likely tempered, so don’t hit the corners on anything or it’ll basically explode into a million pieces.