"Unexpected situations" refers to events or circumstances that occur without warning or planning, taking people by surprise and requiring them to adapt or respond quickly. Full definition
Drink too much and you might black out — though that might land you in unexpected situations as well. (theverge.com)
All orders will be issued within 3 days, in case of unexpected situation, we may delay the shipping time. (nz.dhgate.com)
Planning for unexpected situations as well as the routine costs of owning a home can help you avoid foreclosure or bankruptcy when emergencies arise. (mortgage-x.com)