Photo by Peter Dazeley/Getty ImagesPeter DazeleyDespite news of further weak trading, Pets at Home’s share price spiked on Wednesday as the retailer averted another confidence-crushing profit warning.At 216.4p per share, the Pets at Home share price was last 4.4% higher in midweek business.The FTSE 250 company said revenues dipped 1.3% in the 28 weeks to 9 October, to £778.3 million. This pulled pre-tax profit 29.1% lower to £36.2 million.Including insurance start-up expenses, operating costs rose 1.2% from ...