Something that has always bothered me is when people find a total lack of courtesy to be funny. The first instance that comes to mind is a number of years back when the family of a little brat won $10,000 on Funniest Home Videos because this little kid said to a Santa upon whose lap he was sitting, "You have bad breath!" He was being a brat. Instead of being mortified, the parents thought it was funny and sent the tape in. Apparently enough other people thought it was funny to vote for them to win. I personally think that self-centered and bratty kids grow up to be self-centered and rude adults.
It appears that I am right. There is a site called Regiftable where people share funny stories of how they were rude to someone by giving as a present a gift that they didn't want. This practice (popularized with the term "regifting" on Seinfeld) mocks the notion that "it's the thought that counts". I find the practice to be sad, rude, and inconsiderate. I don't know who is being insulted the most. Is it the giver because he is having his gift rejected or the receiver because she obviously isn't even getting the courtesy of a well-thought out gift.