"Mrcheerful" wrote in message
...
On 09/09/2014 23:53, TMS320 wrote:
"Mrcheerful" wrote in message

I broke a laminated screen by pressing a stick on mirror too hard.

OK. How much did it break?

A crack that went downwards.

I once had a very deep stonechip (in a laminated windscreen on a 1975
car, incidentally) and gently pressing it caused a crack to spread. That is
the nature of cracks. But it required a lot of energy from a sharp edged
object to originate it.