It was a relatively quiet day of eight precept adherence for me on Friday (the day my calendar said was Vesak).
In reality though, other than the not eating after lunchtime and the avoidance of music and entertainments, it was just like any other Friday really - a bit of meditation, a bit of Dhamma study, a bit of online Dhamma discussion.
The only other highlight was my Wii Fit balance board telling me I'd lost 2.0 kg since the previous night's weigh in... good old full moon days.
Through corruption of the Dhamma comes corruption of the discipline, and from corruption of the discipline comes corruption of the Dhamma. This is the first future danger as yet unarisen that will arise in the future. You should recognize it and make an effort to prevent it. (AN 5.79)
Neither traceable in the Discourses nor verifiable by the Discipline, one must conclude thus: 'Certainly, this is not the Blessed One's utterance; this has been misunderstood by that bhikkhu — or by that community, or by those elders, or by that elder.' In that way, bhikkhus, you should reject it. (DN 16)