Speaking of strange noises, I heard what sounded like a very loud alarm, like one you'd hear in a factory, from outside my college the other day. Now, I heard an RV moving off and coincidently the noise died down. The last time I heard such a noise was on an ME on the 150 a number of years ago. It turned many heads on Cork Street. Another driver on a 150 heading in the opposite direction stopped, chatted with the driver and the noise stopped. To this day I have no idea what the noise could be, how it can be so loud on the outside of a bus and what could trigger it. Now, it may not have been the RV making the noise, but it seemed strange that it quietened down when the bus was moving off down the street. It could have been another vehicle.