Erm. I work in condoms. Well, not IN them, but you know...
1) Latex condoms fail in minutes if you get any oil on them.
2) Condoms used for anal sex are more likely to fail, especially if you don't use enough lube (but see 1 above)
3) Too small, or too large = failure risk.
4) Thin are as strong as thick.
5) Most condom failure is due to user error.
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Overhead, the Albatross hangs motionless upon the air,
And deep beneath the rolling waves,
In labyrinths of Coral Caves,
The Echo of a distant time
Comes willowing across the sand;
And everthing is Green and Submarine
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