I don't have such an aggressive alarm clock. :) We have two cats that are, however, much more aggressive about getting us out of bed to make sure they are fed. ;) In fact, I use my mobile phone as my alarm clock...I wonder if anyone uses the traditional alarm clock any more?My father would sometimes sleep through the alarm, so if he had to wake up for an important event, like going to the airport, he would hit his head against the pillow for the time he had to walk up, e.g., four times if he had to wake up at 4 o'clock. He claimed it worked for him. I've never tried it. Do you have any other tips for not sleeping through the alarm?