1. If Robert goes to bed late, he will sleep in.
2. If he sleeps in, he will miss his bus.
3. If he misses the bus, he will be late for work.
4. If he is late for work, his boss will be angry.
5. If Robert’s boss is angry, he will fire him.
6. If Robert loses his job, his girlfriend will get upset with him.
7. If Robert’s girlfriend gets upset again, she will break up with him.
8. If she breaks up with him, he will be lonely.
9. If Robert feels lonely, he will call some friends.
10. If Robert calls his friends, they will ask him to their party.
11. If Robert goes to the party, he will drink too much beer.
12. If Robert drinks too much beer, he will need a ride home.
13. If Robert needs a ride home, he will have to stay until the end of the party.
14. If Robert stays until the end of the party, he will get home very late.
15. If Robert gets home late, he will go to bed late.
