The following eight words or phrases have had the letters P-A-I-N removed, in that order within the word/phrase, but not necessarily consecutively. Additional occurrences of any of those letters have been left, and any spaces have been removed.
Add the missing P-A-I-N to identify each entry.
From Mensa Puzzle Calendar 2018 by Fraser Simpson, Workman Publishing, New York. Puzzle for August 17.