>>191734743DS - several times, a couple times when it was smacked off the table by my sister's cat, and once when it was slapped off my hands by a coworker at lunch (prick). no damage, but then again I like to keep it in its circle-pad because it feels nice.
DSPhat - It survived being stampeded on in an earthquake panic, been dropped maybe a couple times - still works to this day.
DS Lite - flew out of my hands during an earthquake emergency stop in the subway in tokyo (during the 2009 disaster) - minor knick in the corner and a crack in the casing - it still works, but the crack widens if I open it too far. I've been really careful with it otherwise, because it's a limited edition (the crack really saddens me for this reason)