Managers generally focus their energy on these 'exceptions'. For example, the weather can cause an unexpected variance for Davis Service Group's business. June and July 2008 were warm, sunny months in the UK; the hotel and restaurant industry was busy and therefore the laundries and their staff were busy. This was followed by a wet August. The number of people going on holiday fell and resulted in reduced linen services. The knock-on effect of reduced traffic in the hotel and restaurant industry was less linen processed at Davis Service Group