Good UI sighting

Tech­no­rati has a won­der­ful solu­tion for shiel­ding users from acci­den­tal des­truc­tive action: offer an undo link along with the res­ponse mes­sage:

This is much less dis­rup­tive than an “are you sure?” dia­log, which are often igno­red by con­fir­ma­tion fati­gued users. It may seem too subtle, but desig­ners are already tas­ked with tas­te­fully dra­wing atten­tion to res­ponse mes­sa­ges, and a user that’s just made a mis­take will be willing to invest a few seconds of attention.