People's fear of creatures that are small is without a doubt irrational. You shoudn't be afraid of such animals especially because they are afraid of you to begin with. You've got the edge, and if you fear them then you are giving them too much power and equilizing the playing the feild with which you originally had full control. The only things that would be rational to fear are rats, mice and LIVE chickens. >_>"
Rats are too quick for their own good and could very easily give me a heart attack. You should see how they leap. =O They make me leap on to kitchen tables and counters to get away...
Apart from that, don't be afraid of any other smaller beings. Now, seriously, people. what is with the blenders???? O_o