one isnstance of puffy ack pissing me off was when i was in a 110 NOE rtb'ing back to base. NOE meaning as low as i can get, which was several thousand feet due to the mountains. the puffy ack was shooting at me still!!! not more than 50 ft off the ground and its shooting at me. not to mention the fact that the base was hidden behind the hills. just really gets on my nerves. but hey, it isnt that important, it never hit me. kept trying to avoid it while avoiding the 6 planes behind me. while i was avoiding the ack, i was wasting precious speed that allowed the planes behind me to eventually catch me, though i was so close to base.