Sometimes, no matter how prepared you are for something in advance, the universe just decides to conspire against you.
For Barry Grant, who set up his video camera on the perfect hilltop in the hope of filming the demolition of Glasgow's Red Road flats -- then ended up completely missing the key moment -- the problem came in the form of a single wasp.
"My misses was running about as a wasp was chasing her so was distracted," Grant explained in the YouTube comments for his video.