In some cases it is an offense by itself to plan or attempt to commit a crime; this in called an inchoate offense. Examples of inchoate offenses include conspiracy to commit murder and attempted burglary. There can be various causes of failing in the attempt, for example arrest prior to committing the crime.
... external urethral sphincter is the skeletal muscle that allows voluntary control over urination.
In the human female, the urethra is about 1-1.5 inches (25-38 mm) long ...