Sets the time-out period before shutdown to xxx seconds. The valid range is 0-315360000 (10 years), with a default of 30. If the timeout period is greater than 0, the /f parameter is implied.
When you grow up and should know better, sometimes you can still make mistakes, like the person who is OP. What OP tried to say was "addictive", but due to lack of education or (more likely) care this question was born.
I love Europe, now add Uber and every other "gig" economy abuser in there. capitalism under control is the only way