There is no limit to the number because the real numbers people have and the ones they tell you arent the same.
Just hit em all, one day you will be a nasty old man or nasty old woman sitting in a chair in a nursing home with apple sauce running down your face and pissing yourself as the orderlies that work there sit your wheelchair bound ass in front of infomercails for 23 hours a day.
Hit all that can you can regardless of what they plowed or been plowed by.
No one wants to hire you for a job with no experience. Same concept.
