The answer is no.
baywax said:
I don't think it's possible to commit a selfless act.
Demonstration for continuous acts:
As long as we are making a conscious decision to give or suffer to provide for another, we are being rewarded by the avoidance of failure of what we expect from ourselves and/or of which we are expected from society for the fear of ridicule of action not taken where otherwise could have been. Also, what is perceived as selfless may provide hope to a caretaker that their efforts will resolve a long term problem.
Demonstration act for potential loss of life:
If we commit what some might call a selfless act, we have an awareness that it is good no mater how reactionary or, preconceived it is. Most of us, desire a meaning in life above all else and would attain a "selflessness" status from others from the MOMENT we put our life at risk whether resulting in either escape, injury or death while the act is in progress. The rest of us would have no moral invested interest in being selfless and therefore be the one's on the sidelines of a seen in which a dangerous self sacrifice rescue or the like might be attempted but chosen not to.
A persons act/acts may be deemed by others as a selfless act, but not to themselves.
For me personally I'd like to think it would a selfless act to feed myself to wild tigers, but that's only because I care for wildlife in general and therefore it would be an honor to offer myself to something greater than myself of which I am a integral part of. That is why it wouldn't be selfless. Giving, no matter how extreme, affects how good I feel emotionally responsible AT THE TIME OF THE ACT no matter how terrified I might feel during the act because I would have made the decision first. (hopefully :)
Because we all are different, we go to different lengths to "act" selfless, but are not selfless ourselves.