Classical ConditioningA learning process that occurs when two stimuli are repeatedly paired: a response which is at first elicited by the second stimulus is eventually elicited by the first stimulus alone.by Monzerrat Gutierrez
The bell is now the conditioned stimulus and the feeling worried about your dog / dog running away is the conditioned response.
Oh no kids please stop !! My dog oh noooo !
Sleeping dog and cleaning owner is the unconditioned stimulus and the feeling of being dog going crazy over a belll is unconditioned response.
Wow my room is so dirty oh nooo
The bell is now conditioned Stimulus and the feeling of going crazy because of your dog / dog running away is the conditioned response.