Is it that easy to mistake the parking brake for the flap lever?  This seasoned airline crew did.  Always confirm any selection of a control with an indication.  Don’t get complacent!

On approach to Leeds Bradford Airport (LBA), the commander inadvertently selected the parking brake to ‘ON’ after the first officer had called for full flap. As a result of a previous landing by the commander at LBA, in difficult weather conditions, his attention was focussed upon the numerous ATC wind advisory messages transmitted during the approach. One of these messages coincided with the first officer request for full flap. When the first officer realised that the flaps had not been deployed to FULL, he called again for their selection, to which the commander responded correctly. The application of the parking brake was not detected prior to touch down. All four main landing gear tyres deflated on landing.