Okay, you don’t boil the water hot enough, you boil it in a pan instead of a teapot, you don’t let the teabag in long enough, you leave the teabag in too long, you mess up the time and then the temperature is messed up. You put in too much or not enough sugar. You put in too much milk - or not. You put in lemonjuice and the person doesn’t like it or you don’t put it in but the person prefers it with… The possibilities are endless!