Nope.

Do they have a posted policy somewhere? Like at a tavern they post 'We reserve the right to refuse service to anyone we feel is intoxicated'.

Maybe they have a sign 'We reserve the right to refuse to sell to anyone we feel may be raving mad, or preparing to commit a criminal offense'.

I would think if someone came in and said, "Hey buddy, help me pick out a gun because my neighbor has ticked me off for the last time and I plan on doing something about it! " they may refuse to sell the guy a bazooka.

Sounds reasonable.... Everyone tries to cover their behinds nowadays.

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Kirk / Spock 2020