This is from my own personal observations, so I hope that the forum's female readers will not attack me. There are several factors which men do not normally consider about the toilet situation (I know that I didn't):
1. Women have to sit down (sure, a few don't but let's not get sidetracked). When they do sit down, they do not wish to feel anything between their skin and the seat. Nothing. Nada. Usually, it is the female who regularly cleans the toilet, including the seat. Thus, they expect to find what they have already cleaned to remain that way--which brings us to point number two...
2. Women don't have to 'aim'. If they have to urinate, they squat, push, wipe, flush and they are done. Unless there is any other business to take care of before they stand up, the toilet, for all intended purposes, will be in very good shape (e.g. clean) afterwards. On the other hand, men do have to aim--and if our aim isn't 100% perfect, we're gonna clip the bowl. That's a big no-no, but they're able to forgive us for wetting the lip of the bowl (well, they really don't, but they'll let us live long enough to think that they have forgiven us). That's not the case if they find themselves sitting in our urine. Doesn't matter if it's a drop, puddle or river. Trust me. Their reaction after sitting in your pee may only last a nanosecond, but in that instant, they visualize your death in 1,000 ways--which brings us to the final point...
3. Women love every part of you. If they truly care for you, it won't matter to them if you look like freaking Favour Flav (seriously). And in their eyes, 99% of the time they unconditionally love that part of you which Bud Light feels necessary to exit out of after downing a six pack or two. Don't give them cause to love your used beer dispenser any less than the first time they met. Should the backs of their upper thighs feel sticky one time too many, they could channel the spirit of Lorene Bobbitt during that split second, uncap your dispenser and force you to sit on the toilet for the rest of your life.
I hope some of my insight helps.