身陷牢笼

身 = 自 + 丿 : Mnemonic symbol: a bodysuit.

Sherlock Holmes (sh) tries on his new bodysuit (身) in front of the encampment ((e)n1). To see himself better in his hand mirror (自), he uses a banana (丿) as a selfie stick.

陷 = 臽 + 阝 : After Marie Curie (xi) caught the crane in the anthill's bathroom (an4) she wants to catch the pope (阝) next. She knows that a normal sling trap (臽) will not work, so she digs a pitfall (陷) this time, but to be on the safe side she installs an additional sling trap (臽) at the bottom of the pitfall (陷).

牢 = 宀 + 牛 : Sir Lancelot (l) keeps a bull (牛)in the aorta's kitchen (ao2) by imprisoning (牢) it in a very sturdy (牢) graduation cap (宀).

笼 = ⺮ + 龙 : Lenny Lemur (lu) prepared dim sum in the engine's kitchen ((e)ng2). As the dragon (龙) smells the dim sum he wants to try some, but Lenny Lemur (lu) covers (笼) the flat bamboo basket (笼) with a bamboo stick (⺮) to prevent the dragon from stealing the dim sum.