TTH wrote:I am not exactly the one to ask since my grammar is not great. I would not use a comma in that sentence though.
I believe the following reply by 'Flyboy' is correct.
With a comma, you stress irritation by Bill. Without the comma, you stress irritation by the interruptions. If you use the apostrophe with Bill (Bill's) as shown in some of the posts, the emphasis is automatically placed on the interruptions.