I sometimes do raise with trash in late position to try to pick up a quick pot, but I don't like to limp with a good hand. Occasionally, I'll do a min raise in early position with AA or KK. Usually, I'll either get a re-raise or a lot of callers. Sometimes, it seems like it's worth the risk to get a few more callers than you'd like rather than just get the blinds. There's nothing worse IMO than just getting the blinds with a high pocket pair.