After preparing and partially boiling vegetables and meat, they were then
put in a large glass bowl and it was placed on top of a gas hob to bring
them to
the boil. That was prior to placing it in the oven to make an oven
casserole.

This practice has been done by me quite a few times before. I've always
assumed that a Pyrex bowl can be placed on a gas ring and the contents
boiled, because someone I know has Pyrex glass saucepans, that they use to
boil things in.

However the wife doesn't think that these glass bowls should undergo this
kind of treatment on top of the gas rings.

Today using a smoky dark coloured glass bowl which I don't think I've used
before,
but I really thought it was an oven proofed bowl. It suddenly completely
collapsed into pieces as I placed it in the oven. What a mess.........

My question is not whether this was really an oven proofed glass dish, since
i guess we will never know for sure.

But is the wife right in saying this is a very *risky* procedure, putting a
pyrex glass bowl over a gas ring to boil things? Even though i always start
on
the minimum heat so as to minimize any strains on the glass. So would
you think that this is safe to do, or not? Thanks.