What three things does Bob Ewell do that alarms Aunt Alexadra?

1) Bob Ewell accuses Atticus of being responsible for him losing his job.

2) Someone tried to break into Judge Taylor's home.

3) Bob Ewell harrassed Helen Robinson on her way to work, causing her to travel way out of her way to get to work. Mr. Link went to the Ewell home and put a stop to it.