Lost your pen, no pen
No pen, no notes
No notes, no study
No study, fail
Fail, no diploma
No diploma, no work
No work, no money
No money, no food
No food, you get skinny
Skinny, then you get ugly
Ugly, no lover
No lover, no marriage
No marriage, no children
No children, alone
Alone, depression
Depression, sickness
Sickness, death

lesson:
Don't lose your pen