Possible Clues:

• Cat and owl were sharing difficult circumstances
• Sharing difficult circumstances
• Sharing unfortunate circumstances
• Suffering similarly after a joint embarkation?
• Similarly up a gum tree?
• Like shipmates fated to sink or swim together?
• Avant-garde Bohemian taste facing common problem
• *Similarly troubled
• Bemoan atheist's appalling suffering likewise
• Where you might find all of those in 7 down sharing difficult circumstances