Latex neck seals used in the diving industry need to be correctly fitted to the diver. A neck seal that is too large allows water ingress or gas escape and a neck seal that is too small can cause severe breathing problems.
Vessels may lose position during critical operations due to failure of their dynamic positioning system (DPS). The cause can be blocking of data communications in dynamic positioning (DP) systems dependent on data communications via a shared medium (e.g. data bus).