Totally agree with flungdung, if you reject after TDP and something goes wrong, i.e. you run out of runway, whatever, it's going to be your fault and you better have some very good reasons for your actions. A gentleman/woman in a black gown and funny wig is going to be asking you some very pertinent questions to try and make sure that everything that hits the fan lands (and sticks) to you. That's blame culture for you, it's the society that we live in, like it or not.
Could well culminate in a visit to 'Aviation House' to deliver licence to CAA shredder.