Handling exceptions is interesting because in my experience a lot of it boils down to a social dimension: * if the input data field for a telephone number cont

Handling exceptions is interesting because in my experience a lot of it boils down to a social dimension: * if the input data field for a telephone number contains a country name do you communicate that error back to the source, if yes how and how often (assuming your source isn't a life user bit a bureaucratic institution) * if there is an error that really shouldn't happen, how will you notice? You probably don't have all the logs scrolling on 100 displays to watch for the red. So maybe send emails? But if you send emails about pointless stuff people will start to ignore them