There may be a provision as follows:

“Illegal Occupation: The company shall not be liable for any loss to which a contributing cause was the insured’s commission of or attempt to commit a felony or to which a contributing cause was the insured’s being engaged in an illegal occupation.”

18 Del. C. 1953, § 3325; 56 Del. Laws, c. 380, § 1; 80 Del. Laws, c. 310, § 1