Emails are really easy to ignore, letters are _slightly_ less easy, calls are rather hard to ignore, and visits basically cannot be ignored. At least in the sen

Emails are really easy to ignore, letters are _slightly_ less easy, calls are rather hard to ignore, and visits basically cannot be ignored. At least in the sense that you get feedback instantly from the latter two, while the first two leave you wondering whether they got the correspondence or not, or are just ignoring you.