Public Displays of Affection

Public displays of affection a.k.a. PDAs have long been a topic of controversy. Some are offended by them categorically, others are find them to be inappropriate in certain situations.

But on the other hand, some couples have no problem with PDAs and wish to physically express their love whenever they want. To them, opposing attitudes are "prudish" since hugging and kissing aren't actually crimes.

What do you think? When is it time to "get a room?" Are you guilty of PDAs?