I can empathise with sore cheeks, when I experienced the same situation I just chatted to him for a long time ! He never reappeared.
to combat the Pan pipers I have opted to strum in B minor , smile and
Yes i have joined the ranks of the 'reinforced sound' brigade using portable Vox DA5 amp with input for mike runs on 6 batts but I dont use the voice head mike unless I have to and I keep the volume down so as not to be intrusive and theres lots of toys on it £120, highly recommended
however, if I need reinforcements, well I can call on a sofisticated buddy to assist on Sax, and we point it at any other intruders, naughty , but useful