1. Where a servitude is ambiguous and evidence of surrounding circumstances at the time of its constitution is unavailable, the servitude must be interpreted restrictively applying the principle that servitudes, being limitations on ownership, should be accorded an interpretation which least encumbers the servient tenement (following Voet, Carpzovius, and Pieterse v Du Plessis). 2. A servitude granting 'common use' of a narrow passage without further definition or description should be interpreted as limited to use as a passageway for access, not for any lawful purpose. 3. Evidence of how a servitude was used by persons other than the parties who constituted it is inadmissible for purposes of interpreting the servitude. 4. A servitude is extinguished by prescription under section 7(1) of the Prescription Act 68 of 1969 where it has not been exercised for an uninterrupted period of 30 years. 5. For acquisitive prescription of land under section 1 of the Prescription Act, the claimant must possess the property openly, with the intention to possess as owner, and exercise physical control over it for an uninterrupted period of 30 years.