I had a funny and really nice F/A going to MTH this year. But I'm pretty sure there arent to many people going to MTH on business. If we had been flying to JFK it would have been different. I think its ok for F/As to be funny if youre going to a predominantly leisure destination but if I'm flying to LHR its kind of unprofessional to be making jokes like that when 75% of the plane is probably working. Also, those stand up routines in the aisles that some F/As do are annoying under any circumstances. Its also really annoying when F/As start singing at 6am over the pa.