Identify the following legal concepts:

1. The landlord's right to attach her tenant's movable goods on the property if the rental is in arrears.
2. Mbitha is persuaded by a smooth-talking salesman at the Ondangwa trade fair to buy a set of pots in terms of an instalment sale agreement. The next day she realises that she does not need the pots. She can return the pots within 5 days.