We all know these coils have the ability to be anti-social in the wrong hands, so we are all hopefully thoughtful and considerate whenever we use them.
For instance the nighttime would be a particularly bad period in built up areas, unless your neighbours are aware of the coil and, more importantly, tolerant of it. Even very short daytime runs can however have their problems, as I found out.

Unfortunately in an early evening run on 23rd August 2009 a nearby resident Mr John Butters with whom I had not had any previous complaints or contact whatsoever, unexpectedly leapt over a fence and caused the following damage.
The 6 inch coil, which had only been run for a total maximum of 15 minutes over the last 6 hours that day, was running at around half power from a 12 Kv Pig. Despite the coil giving out 4 foot streamers when the incident started, this did not seem to deter Mr Butters. Fortunately for him I did however manage to turn down the power before he got within range of the streamers. This though allowed him to get close enough to inflict the following damage.