Just put the rat in a sealed tupperwear container with no airholes and wait until it passes out and dies and then feed it.
1	Just	just	ADV	RB	_	2	advmod	2:advmod	_
2	put	put	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	0:root	_
3	the	the	DET	DT	Definite=Def|PronType=Art	4	det	4:det	_
4	rat	rat	NOUN	NN	Number=Sing	2	obj	2:obj	_
5	in	in	ADP	IN	_	9	case	9:case	_
6	a	a	DET	DT	Definite=Ind|PronType=Art	9	det	9:det	_
7	sealed	seal	VERB	VBN	Tense=Past|VerbForm=Part	9	amod	9:amod	_
8	tupperwear	tupperware	NOUN	NN	Number=Sing	9	compound	9:compound	_
9	container	container	NOUN	NN	Number=Sing	2	obl	2:obl:in	_
10	with	with	ADP	IN	_	12	case	12:case	_
11	no	no	DET	DT	_	12	det	12:det	_
12	airholes	airhole	NOUN	NNS	Number=Plur	9	nmod	9:nmod:with	_
13	and	and	CCONJ	CC	_	14	cc	14:cc	_
14	wait	wait	VERB	VB	Mood=Imp|VerbForm=Fin	2	conj	2:conj:and	_
15	until	until	SCONJ	IN	_	17	mark	17:mark	_
16	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	17	nsubj	17:nsubj|20:nsubj	_
17	passes	pass	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	14	advcl	14:advcl:until	_
18	out	out	ADP	RP	_	17	compound:prt	17:compound:prt	_
19	and	and	CCONJ	CC	_	20	cc	20:cc	_
20	dies	die	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	17	conj	14:advcl:until|17:conj:and	_
21	and	and	CCONJ	CC	_	23	cc	23:cc	_
22	then	then	ADV	RB	PronType=Dem	23	advmod	23:advmod	_
23	feed	feed	VERB	VB	Mood=Imp|VerbForm=Fin	14	conj	14:conj:and	_
24	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	23	obj	23:obj	SpaceAfter=No
25	.	.	PUNCT	.	_	2	punct	2:punct	_
