Flu Shot... JK flu mist in your nose

I have never gotten a flu shot before but I considered getting one since college is the flu's favorite breeding ground. I got h1n1 early this semester... well I think but I can't be sure because campus health doesn't bother to test you or medicate you (maybe they will revise this policy as a result of poor Lillian's fight agains h1n1). They had a vaccination clinic in the Agora and since it is convenient and free it couldn't hurt to go and get a quick shot. I am fine with needles but I am not sure about this mist in the nose thing. I skipped the vaccination and decided to hope that I actually did have h1n1 and therefore can't get it again. Also, being that the vaccination is a mist which indicates that there are airborne droplets that cannot possibly be completely contained within the nasal passages... Is it safe to have the vaccination clininc within 20 feet of the cafeteria food?