Phil Coulson: I can't think of a single time anything alien in human hands ended well.
Skye: I wouldn't mind getting my human hands on Thor. He's so dreamy.
Phil Coulson: Sure. He's handsome, but...
Melinda May: No, he's dreamy.
Phil Coulson: You know, it'd be nice, if for once, Thor and his people sent the god of cleaning up after yourself.
Chosen answer: Coulson believes he was resuscitated then sent to Tahiti to recuperate. "A magical place," he calls it. But in the "Agents of S.H.I.E.L.D." episode "The Magical Place", Coulson, through a mind-reading machine, learns that he was treated by S.H.I.E.L.D. and a fake memory of Tahiti was placed as a "mask" of sorts over the painful memory of the operation, which involved a drug seemingly of alien origin to repair the damage, coupled with a lot of morally dubious surgery.