宠
=
宀
+
龙
:
Chantal Chicken (chu) had a great life when she was a little chick growing up in the engine ((e)ng3). Her father, a dragon (龙), would always spoil her (宠) and have her sleep in his cozy graduation cap (宀).
坏
=
不
+
土
:
In the airplane's bathroom, there is a clear sign that it is forbidden to enter the room with dirty feet. Helga Horse is quite spoiled though, so she enters right after she went to the muddy stables and spreads dirt all around.