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Tom Bonner was not able to celebrate his Dover debut with a win after unbeaten Kidderminster won the Vanarama Conference clash at Crabble 1-0.
But Bonner, who has joined Chris Kinnear's side on loan until January from League Two side Cambridge United, did give it his best shot - literally.
Bonner almost made a dream start after his long range shot fizzed just past the post after just a couple of minutes play.
His new teammate Nathan Elder then had a header saved as did Richard Orlu as Dover created chances but couldn't convert them into goals.
That came back to haunt Dover in the 51st minute when Jack Byrne got on the end of Kyle Storer's cross to beat Mitch Walker from close range.
The re-start was then delayed for almost five minutes due to injury, not for a player, but for referee Dean Treleaven.
He couldn't continue so the fourth official, Paul Johnson, took over and he found himself in the spotlight as Dover pressed for an equaliser.
Substitute Jake Reid was bundled over in box in the 78th minute but claims for a penalty were waved away by the new man in charge.
Johnson also waved away another penalty appeal by Dover in the 90th minute after a cross from another substitute, Christian Nanetti, appeared to hit the arm of Jamie Crimes.
The defeat was Dover's fourth of the season and second consecutive after the 6-1 loss at Woking on Bank Holiday Monday.
Dover: Walker, Orlu, Bonner, Kinnear (Bellamy 79mins), Wynter (Nanetti 68mins), Lock, Cogan, Stone, Sterling, Payne, Elder (Reid 76mins). Subs not used: Deverdics, Mambo.
Attendance: 833