After being involved in two nasty auto induced crashes in the last few years, I will never do anything to dull the senses whilst riding.
I'm pretty careful regarding alcohol as well and marvel at my friends that do Ragbrai every year while having beers in every port.
Last time I did Ragbrai there was an acquaintance that strapped a Sony boom box to his rear rack.
Made lots of friends while playing "God Save the Queen" by the Sex Pistols county after county.
His performance may have been beer induced, but he was one heck of a rider.