If, on the contrary, the possessor were in bad faith, the owner has the option either of keeping them, upon paying what they cost on their actual value, or of permitting such possessor, if the latter can do so with advantage to himself or herself without deteriorating the land, to remove them at his or her own expense. Otherwise, in each case, the improvements belong to the owner, without indemnification. The owner may, in every case, compel the possessor in bad faith to remove them.