try to train him to heel, which means to walk round you before he needs to go on a leash, and he may do that.
1	try	try	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	0:root	_
2	to	to	PART	TO	_	3	mark	3:mark	_
3	train	train	VERB	VB	VerbForm=Inf	1	xcomp	1:xcomp	_
4	him	he	PRON	PRP	Case=Acc|Gender=Masc|Number=Sing|Person=3|PronType=Prs	3	obj	3:obj|6:nsubj:xsubj	_
5	to	to	PART	TO	_	6	mark	6:mark	_
6	heel	heel	VERB	VB	VerbForm=Inf	3	xcomp	3:xcomp|9:csubj	SpaceAfter=No
7	,	,	PUNCT	,	_	6	punct	6:punct	_
8	which	which	PRON	WDT	PronType=Rel	9	nsubj	6:ref	_
9	means	mean	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	6	advcl:relcl	6:advcl:relcl	_
10	to	to	PART	TO	_	11	mark	11:mark	_
11	walk	walk	VERB	VB	VerbForm=Inf	9	ccomp	9:ccomp	_
12	round	round	ADP	IN	_	13	case	13:case	_
13	you	you	PRON	PRP	Case=Acc|Person=2|PronType=Prs	11	obl	11:obl:round	_
14	before	before	SCONJ	IN	_	16	mark	16:mark	_
15	he	he	PRON	PRP	Case=Nom|Gender=Masc|Number=Sing|Person=3|PronType=Prs	16	nsubj	16:nsubj|18:nsubj:xsubj	_
16	needs	need	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	11	advcl	11:advcl:before	_
17	to	to	PART	TO	_	18	mark	18:mark	_
18	go	go	VERB	VB	VerbForm=Inf	16	xcomp	16:xcomp	_
19	on	on	ADP	IN	_	21	case	21:case	_
20	a	a	DET	DT	Definite=Ind|PronType=Art	21	det	21:det	_
21	leash	leash	NOUN	NN	Number=Sing	18	obl	18:obl:on	SpaceAfter=No
22	,	,	PUNCT	,	_	26	punct	26:punct	_
23	and	and	CCONJ	CC	_	26	cc	26:cc	_
24	he	he	PRON	PRP	Case=Nom|Gender=Masc|Number=Sing|Person=3|PronType=Prs	26	nsubj	26:nsubj	_
25	may	may	AUX	MD	VerbForm=Fin	26	aux	26:aux	_
26	do	do	VERB	VB	VerbForm=Inf	1	conj	1:conj:and	_
27	that	that	PRON	DT	Number=Sing|PronType=Dem	26	obj	26:obj	SpaceAfter=No
28	.	.	PUNCT	.	_	1	punct	1:punct	_
