If playing golf at night is somewhat obscure, night time atillery might be less that a good idea. (fore!_ow?) One year, many many years ago, I fired my soda can mortar over a water. as soon as the round went off, a jet skier came from the right. It was a long 11 seconds (hang time) till we knew everything would be ok. (I never caused THAT situation to happen again!) Firing at night, you might not know until the next morning if everything was alright.