Absent threatening behavior, nah. No point to it.
Thats why you yell out "Oh my gosh hes coming right for us!" just before you take the shot.
"Every man alone is sincere; at the entrance of a second person hypocrisy begins." - Ralph Waldo Emerson
"People demand freedom of speech as a compensation for the freedom of thought which they seldom use." - Soren Kierkegaard