In Typee, Herman Melville wrote:
No man has more than one wife, and no wife of mature years has less than two husbands, – sometimes she has three, but such instances are not frequent.
One set of readers might object to the use of less than with count nouns; another might object to the unconventional matrimonial arrangements in the Marquesas Islands. I’d like to see a Venn diagram that shows the relations between the two sets, if only out of idle curiosity.
For more on the difference between less and fewer, see this post.