Help What would be preferable for hanging, a dumbbell on the other side of the door or using a portable pull-up bar? (And another question)

[MercenariesofMidgar]

Plan to do airbnb and since legally camera aren't allow inside I feel safer doing it there. Was thinking to do either or but not sure which one would be better??? Also tested my schedules SMS messages... how many hours later should I send those to my friends (so they could call the police?) 3 hours? I would be at the airbnb without interruption from around 1-5 probably, was just thinking of sending it at 5:15-5:30. Probably was planning to do it around 3:30. Also (I might ask this again later incase this isn't answered in this thread) I'm really tall so i was thinking getting something so my legs are tied (making me short enough to ensure a full suspension. drew a sketch of what i mean

I feel so bad for the ones I'm leaving behind because I don't deserve them; but they will be fine. In the long run this will be better.