They will if you supply the batteries. They have a girl dedicated to this job. Very important to remember, don't discard any 9volt batteries without first covering over the contacts with electrical tape. If the contacts touch anything metal, even the contacts of another battery, it can start a fire. Don't believe me, take a battery and touch the contacts with a steel wool pad, such as brillo.
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Patriot Guard Riders--"Standing for Those Who Have Stood for US"!
Laughter is the best medicine, unless you're being treated for Shingles