Surely humour and meanness are orthogonal dimensions (Go Skiwi!
)
One can try not to be mean, but sometimes one's comments can be misinterpreted. One often can't help misinterpretation - it may be a factor of the recipient not actually understanding what the words used mean. (See Helsinki Principle).
Hopefully, my humour isn't misinterpreted as mean as it certainly wasn't intended as such.
Have a good weekend everybody, if it doesn't rain, I'm going to fly my helicopters...
Paolo