Manchester-based company Purple inserted the community service clause into the terms and conditions for its public Wi-Fi hotspots to illustrate “a lack of consumer awareness of what they are signing up to when they access free wifi”.

The sneaky clause committed users to cleaning toilets at festivals, scraping gum off pavements, and “manually relieving sewer blockages”.

Just one person successfully claimed a prize for anyone who actually read the terms and conditions and noted the clause, The Guardian reports.