I frequently see co-workers omitting the subject of a sentence and replacing it with an apostrophe. Is there some informal rule for this?
I could only find anecdotal examples. Here are a few:
1) 'Sorry for the added complications.
2) 'Hopefully back in time for lunch.
3) 'Sorry I can't be of more help.
4) 'Sorry I wasn't able to get anywhere with that.
I haven't been able to find anything explaining why some people do this. It seems to me that they are omitting the subject when it is obvious that the subject is themselves. I.e. changing "I am sorry ..." to "'Sorry ..."
Does anyone have any insight on this usage?