"Only cowards bullies those who are smaller than themselves"
You're probably right about their tiny-ness... I'm sure that lots of honey-eaters would adjust their ethical values quickly if bees and mosquitos had the same size/weight as humans!
Here's an amazing photo taken by Stephen C. Gushue (check out his homepage for more photos) of a bee that doesn't look like it wants or deserves to be disturbed.
http://k53.pbase.com/o4/88/688888/1/...P6269copy2.jpg.
Why do I have a feeling that if this bee was 6 feet long those who normally says that they are against harming dogs and lambs, but have no problems with harming bees and other insects would become very quiet? :)
(I found the above and other great macro/insect pictures here.)