sink to such depths

to behave very badly I find it hard to believe that human beings could sink to such depths.

Name	Pronounced	Usage
Sindri	-	Norse Mythology, Ancient Scandinavian, Icelandic
Benton	[ben'tən]
Coeus	-	Greek Mythology (Latinized)
Roshanak	-	Persian, Ancient Persian
Martial	MAHR-shəl (English)	History
Chenaniah	-	Biblical