Use a lift again in safety

I always find it amusing that lifts often say "Do not use lift in case of fire", which I inevitably read as meaning the lift should never be used, just in case there is a fire going on (yes, I am easily amused). Fortunately the lift in my block of apartments says "Do not use the lift if there is a fire" so I can use the lift without fear as long as I'm unaware of any fire. Even though the later alternative is six letters longer (37 vs. 31, including spaces), it is so much less ambiguous. Well worth the additional six letter investment in my opinion.