Some accidents have deadly consequences. And sometimes it's the thing you didn't do — didn't say, didn't see — that leaves you with the most guilt.
For 25 years, retired Army Col. David Taylor has carried feelings of guilt over the death of one of the soldiers in a maneuver he was leading.
In 1991, during one of the final battles of the Gulf War, Army Spc. Andy Alaniz was killed by friendly fire in Iraq. A U.S. tank unit fired rounds at the group of vehicles Alaniz was in, mistaking them for the enemy. He was one of 35 Americans killed by friendly fire in the war.
Tuesday night — when Hillary Clinton was delivering her victory speech, after she won the primaries in Florida, North Carolina and Ohio — MSNBC host Joe Scarborough live-tweeted this bit of advice to her:
"Smile. You just had a big night."
Suffice to say, women - were not amused.
"Said no one to a man, ever" tweeted one.
Another offered: "Women LOVE it when you say this."