An Active is imprinted with a personality package and sent out on engagements, usually lasting for up to three days. However, the episode "Man on the Street" introduced the concept of a sleeper active who lives with a single imprint for months or more with a dormant skill set or personality. A voice command or script can be used to activate and deactivate the dormant imprint. Since the Dollhouse does not have the ability to wipe its Actives remotely, the deactivation is simply that - the imprint remains in the Active's brain, but becomes dormant again.