I hear this mentioned a lot, but I'd be interested in hearing how many opportunities a company like Google would give someone. If you fail twice, would you be g

I hear this mentioned a lot, but I'd be interested in hearing how many opportunities a company like Google would give someone. If you fail twice, would you be given a third opportunity in a few years? How about if you fail again? I think a lot of people would be turned off from applying a second time, in case they blow what might be their last chance. They'd rather wait until they feel they are ready, and for many people that may be never.