A common sight in my campaign are outhouses with a gelatinous cube at the bottom. About once a year the sanitation engineers with pole arms kill the grown up cube (which is not climbing out without help), and replace it with a little cube.
Keep in mind, also, that you have the strength only for a limited time. Rage for a few rounds and mutagen, bull strength and enlarge person for a few minutes.
And how did you start with a 20 STR? Dwarves get the bump to Con and Wis.