All my life, 'Yes' means Yes and 'No' means No. Simple, straight forward, no confusion to that.
There is however a breed that insist on using yes to mean no. And no to mean yes...
Does this not confuse people?
This breed always seem to expect others to be able to read their mind by saying no when they mean yes. And when double checked to see if they really mean no, they get exasperated that they were not understood......
How to?? When No to you means both yes and no. And a yes to you means both yes and no again......
Ideas are best communicated in a short simple direct manner......