"He also relayed how Boris Yeltsin's late-night drinking during a visit to Washington in 1995 nearly created an international incident. The Russian president was staying at Blair House, the government guest quarters. Late at night, Clinton told Branch, Secret Service agents found Yeltsin clad only in his underwear, standing alone on Pennsylvania Avenue and trying to hail a cab. He wanted a pizza, he told them, his words slurring.
The next night, Yeltsin eluded security forces again when he climbed down back stairs to the Blair House basement. A building guard took Yeltsin for a drunken intruder until Russian and U.S. agents arrived on the scene and rescued him."