when i'm out camping i just let the ticks suck on me until they get really big and puffy and fall off. one time i had like 20 on me at once, was v cool to see.
i got something they need (blood) and can make tons of it. who cares. i scratch their back and they'll scratch mine. that's what i always say.
also, if you ever want to make a good meal, take ~15-20 ticks (bloated) and saute them in shallots, peppers, some heavy cream, old bay, compound butter, and a good olive oil, mix with shrimp and serve over rice. it's my version of john's spicy shrimp and tastes great.