The 1984 Midland and West Sperm Bank Explosion was one of the most infamous Sperm Bank explosions in Human history, also holding the record for number of fatalities as a direct or indirect result of Sperm. The explosion is thought to have been caused by a series of miscalculations and administration problems that led to a massive build up of pressure in Sperm Temporary Holding Tank 3. As a result, Sperm Holding Tanks have been redesigned to withstand at least 75 PSI of Relative Sperm Pressure (RSP) more than recommended by manufacturers. The explosion was also notable for giving Daffy Duck his distinctive yellow markings, the markings shortly after the blast were white as a result of high pressure sperm impact, but as Daffy matured the markings faded to his patent yellow.