there is no problem.

He lost his wallet, but not to worry — he's already called the credit-card companies.

• drop like a hot brick
• drop like a hot potato
• drop off
• drop off someone
• drop off something
• drop out
• drop out of
• drop out of something
• drop someone a line
• drop someone like a hot brick
• drop someone like a hot potato
• drop something like a hot brick
• drop something like a hot potato
• drop the ball
• drop your guard
• drown out
• drown out something
• drown sorrows
• drown your sorrows
• drum into
• drum into someone
• drum out of
• drum out of something
• drum someone out of
• drum someone out of something