She wore a bathing suit the first four days, but on the fifth, she decided that no one could see her way up there, and slipped out of it for an overall tan.
She'd began her sunning when she heard someone running up the stairs.
Since she was lying on her stomach, she just pulled a towel over her rear.
"Excuse me, miss," said the flustered assistant manager of the hotel, out of breath from running up the stairs. "The Hilton doesn't mind your sunbathing on the roof, but we'd appreciate your wearing a bathing suit as you did yesterday."
"What difference does it make?" Blanche asked rather calmly.
"No one can see me up here, and besides, I'm covered with a towel."
"Not exactly," said the embarrassed gentleman. "You're lying on the dining room skylight."