We sat in the dark, and watched our private hot-tub overflow.
The most obvious dangers to favela residents include" health risks from the overflow of inadequate sewage systems; an outbreak of dengue fever in the city from mosquitoes that breed in standing water; and the high risk, due to the tightly packed wooden constructions, of fire.
Before an overflow crowd of more than 1,000, Holder joined Kansas Governor Sam Brownback and several religious leaders at an interfaith memorial service at the Jewish Community Center, the site of one of two shootings that stunned the city on the eve of Passover.
An hour before the speaking began every seat in the theatre was filled and thousands of people unable to get even to the doors were directed to an overflow meeting at the Kingsway Hall.
"We used all our overflow cots," he said.
The dancefloors at clubs like the Pratersauna (Waldsteingartenstrasse 135, 1020; pratersauna.tv) and Fluc, with its bunkeresque and altogether more anarchic downstairs space, Fluc Wanne (Praterstern 5, 1020; fluc.at), overflow with hedonistic crowds of beat-seeking twentysomethings.
Moore said: "A high number of escalation beds [emergency overflow beds] are in use and we are, unfortunately, having to postpone some elective operations.
Opened by Catholic Charities as a way to centralise relief efforts when the bus station began to overflow with migrants, the shelter was supposed to be a temporary response to last summer's crisis.
There is a third community school in the area to cope with the Olwelai overflow, but one with a less happy story to tell.
So many people descended on St James's Park, next to Buckingham Palace, to watch the concert on a big screen that police officers declared the park full and diverted the overflow to Hyde Park.
A member of staff who was, like others, reluctant to comment, nodded when asked about overcrowding and said: "It's just an overflow situation".
