proactivity.
From Wikipedia:
The word "proactive" was originally coined by the psychiatrist Victor Frankl in his book Man's Search for Meaning to describe a person who took responsibility for his or her life, rather than looking for causes in outside circumstances or other people. Much of this theory was formed in Nazi concentration camps where Frankl lost his wife, mother, father and family, but decided that even under the worst circumstances, people can make and find meaning.
The term was popularized in the business press in Stephen Covey's 7 Habits of Highly Effective People. Though he used the word in Frankl's original sense, the word has come to mean "to act before a situation becomes a source of confrontation or crisis" vs. after the fact. It is frequently misused to mean simply "active" the opposite of passive.
Damn. Knowing that there's a piranha gnawing at your leg and doing your damnedest to kick the little fucker away? It's pretty swell to be alive!