Irony can often be a lot more deadly, for instance

Jimi Heselden, owner of the Segway company, lost control of his Segway and drove it off a cliff during a safety demonstration

Paul Walker the star of the Fast and the Furious films died while drag racing, he was not even driving, but was riding shotgun.

Doctor Eugene Aserinsky famous for discovering REM sleep developed narcolepsy in later life and died after falling asleep at the wheel of his car

Jim Fixx the father of recreational jogging and author of The Complete Book of Running, died of a heart attack while jogging he was 52

Franz Reichelt inventor of the Parachute died when he jumped off the Eiffel Tower wearing his new parachute suit which failed to deploy

Tennessee Williams the play write was also a very sexually active homosexual and often boasted of having trained himself to have no gag reflex (I'll let your imagination fill in why) In 1983 he choked to death in his hotel room having accidentally dropped his eye dropper in his mouth while administering ocular medication, his lack of a gag reflex prevented his coughing it up and he choked to death.

John Sedgwick, a Union Army general in the American Civil War and famous sharp shooter's last words were "No one could hit an elephant from this distance" just before being head shotted by a confederate sniper.

Conversely Clement Vallandigham former Union senator, who defected to the south was renowned as a defense attorney who never lost a case. He died proving his client innocent. His defense was that the alleged victim had actually committed suicide. In demonstrating how this could have happened in open court, Vallandigham drew his own gun from his jacket instead of the murder weapon and shot himself dead, thus proving his case and securing an acquittal for his client.

Fame seeking actress Lupe Vélez often claimed she want to be remembered forever, but most of her films were flops. She however attained world wide everlasting fame for the oft repeated tale of her death, a botched suicide attempt, that resulted in the marble seat of her toilet knocking her unconscious when it fell on her while she was vomiting up her overdose, and resulting in her being found next morning drowned in her own lavatory bowl