I feel he should be given 50 50 contact immediately.
NOT
What an irresponsible w**er.
Next time, can you apply factor 50 of waterproof stuff before he takes the kids off? In fact, hasn't he accused you of it being your fault because you didn't do that? (Because obviously, it's your job to be responsible, not his?)
The problem us if they stay overnight, it won't work then.
Amazing that he can damage his kids like this and turn it into an argument about you and him. What a creep.