Sounds like expensive mosquitoes to me:

We're all familiar with so-called "ambulance-chaser" lawyers who often
advertise on late-night television. But did you know that there's another
interesting and somewhat related field: dog-bite law? It's true -- and it's
big business. At the illinois-dog-bite-attorney.com website, for example, I
found these statistics:

a.. "There are approximately 5 million dog bites per year (nearly 2% of
all Americans are bitten by a dog each year)."

b.. "About 800,000 victims per year require medical attention for dog
bites."

c.. "1,000 dog-bite victims per day are seen in hospital emergency rooms
with 6,000 requiring hospitalization each year."

d.. "Dog bite losses exceed $1 billion per year with $345 million paid by
insurance companies."