It has occured to me just how many mundane every day happenings are actually quite scientific. I discovered this whilst dunking biscuits into my coffee. If the biscuit isn't dunked long enough it will still be required to be chewed...which of course defeats the whole purpose of dunking the biscuit in the first place. However should you dunk the biscuit for too long the top half topples off and drops into your coffee leaving a slurry at the bottom of your cup which is not a good thing. For those interested I have found that counting to four is exact scientific formula for the perfectly dipped biscuit. My biscuit of choice at the moment is oat and fruit which contains less than 1 gram of fat which of course means instead of having just one you can have three, four or even five!