#5 Guns and ammunition, or other weapons
While Walmart still sells guns and ammo to adults interested in owning a weapon, as well as other types of non-lethal guns and weapons, they are also very strict when it comes to the return policy for these items. Their policy does not cover any type of ammunition or firearm that you may have purchased at a Walmart. So if you happen to have bought the wrong caliber of ammo, then you will not be able to get a refund on those.
Other types of weapons that are not covered by the policy include BB guns, air guns, and airsoft guns, as well as crossbows.