mark burghard runs pulsar laser games. he organizes events for companies, sports clubs, and children's parties. the busiest time of the year for mark is from easter to october when the weather is good and the ground is dry. his equipment is very sophisticated but very easy to assemble and can be done very quickly in a large garden or small car park. inside the tent people enter another world where the laser gun is king! so who are the most difficult customers? 'funnily enough the adults are more difficult to control than the children,'says mark