Just why be so guarded. Means I can't address anyone at the party ask about safety forms etc.
"It's dickhead mum. He's love to come to xxx party. Thanks. "
Why not say either
Hi I'm dickheqds mum, Dolly. He'd love to come. Thanks .
Or.
Hi It's dickhead mum. He's love to come to xxx party. Thanks, Dolly.
I suspect these people don't have simple social skills required for life.