My votes are:
13
5
18
12
16
13: "On an airport runway lying on my collection of stampbooks" -i can just see that before me!! I hope it's not Schiphol airport here in Amsterdam... you'd be hearing the sexy and soft "watch your step - watch your step - watch your step" all the time.
edit: am i stupid or what! It's not that runway you're talking about. Nevermind!!