Caligula’s belief that he could get away with anything that popped into his head extended beyond that poor unsuspecting priest. The emperor also had his way with Rome‘s coffers, and he soon found himself running low on cash. He turned to blackmail and theft, running prominent Roman families out of their homes. Caligula had so much fun doing that with his own people that he decided to see what people’s houses were like in other empires. So he took an army to Gaul (modern-day France, Belgium, Luxembourg, most of Switzerland, and parts of a few others), where he robbed the locals before continuing north, headed for Britain. When they arrived at the coast, however, he ordered his men to stop and gather seashells, claiming they were the spoils of the ocean he had conquered.

Despite the pretty seashells and news of Caligula’s dominion over the ocean, he did not receive a warm welcome upon his return. He had angered a few too many of the city’s elite. Just four months after coming back from Gaul, he was assassinated by his advisors and bodyguards, as were his wife and daughter to avoid any pesky revenge plots. And with that ended the untold evils of the reign of Caligula.